List(byte,byte) cannot be found in class
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Anybody got a working copy of Filelister.nrx? I found an old copy in the book _Java in a Nutshell_ by David Flanagan. It is failing with this: -verbose5 Filelister.nrx <--- this was passed to the script Usage: ./NetRexxC.sh [-run] [other options] filename NetRexx portable processor, version 2.05 Copyright (c) IBM Corporation, 2005. All rights reserved. Program Filelister.nrx 6 +++ class FileLister extends Frame public +++ ^^^^^^^^^^ +++ Warning: Public class name changed to same case as program name 'Filelister' === class Filelister === constructor FileLister(String,FilenameFilter) 21 +++ dirList = List(12, 0) +++ ^^^^ +++ Error: The constructor 'List(byte,byte)' cannot be found in class 'java.util.List' Kenneth Klein Systems Specialist 502-868-3644 859-750-5179 (Cell) 502-868-2298 (Fax) [hidden email] _______________________________________________ Ibm-netrexx mailing list [hidden email] |
Re: List(byte,byte) cannot be found in class
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I think you have a conflict caused by the fact the List class was
added to the java.util package when the Collection classes came in. Try fully qualifying the class name as java.awt.List. Rick On Tue, Jan 25, 2011 at 9:15 AM, <[hidden email]> wrote: > > Anybody got a working copy of Filelister.nrx? I found an old copy in the > book _Java in a Nutshell_ by David Flanagan. It is failing with this: > > > -verbose5 Filelister.nrx <--- this was passed to the script > Usage: ./NetRexxC.sh [-run] [other options] filename > > NetRexx portable processor, version 2.05 > Copyright (c) IBM Corporation, 2005. All rights reserved. > Program Filelister.nrx > 6 +++ class FileLister extends Frame public > +++ ^^^^^^^^^^ > +++ Warning: Public class name changed to same case as program name > 'Filelister' > === class Filelister === > constructor FileLister(String,FilenameFilter) > 21 +++ dirList = List(12, 0) > +++ ^^^^ > +++ Error: The constructor 'List(byte,byte)' cannot be found in class > 'java.util.List' > > > Kenneth Klein > Systems Specialist > 502-868-3644 > 859-750-5179 (Cell) > 502-868-2298 (Fax) > [hidden email] > _______________________________________________ > Ibm-netrexx mailing list > [hidden email] > > > _______________________________________________ Ibm-netrexx mailing list [hidden email] |
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Thanks, Rick. That put me back on the path. Now I am getting clean (except for warnings) compiles. The the invocation of the applet fails every time. java.lang.reflect.InvocationTargetException at com.sun.deploy.util.DeployAWTUtil.invokeAndWait(Unknown Source) at sun.plugin2.applet.Plugin2Manager.runOnEDT(Unknown Source) at sun.plugin2.applet.Plugin2Manager.createApplet(Unknown Source) at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown Source) at java.lang.Thread.run(Unknown Source) Caused by: java.lang.RuntimeException: java.lang.InstantiationException: FileLister at sun.plugin2.applet.Plugin2Manager$12.run(Unknown Source) at java.awt.event.InvocationEvent.dispatch(Unknown Source) at java.awt.EventQueue.dispatchEvent(Unknown Source) at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source) at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source) at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source) at java.awt.EventDispatchThread.pumpEvents(Unknown Source) at java.awt.EventDispatchThread.pumpEvents(Unknown Source) at java.awt.EventDispatchThread.run(Unknown Source) Caused by: java.lang.InstantiationException: FileLister at java.lang.Class.newInstance0(Unknown Source) at java.lang.Class.newInstance(Unknown Source) ... 9 more Exception: java.lang.reflect.InvocationTargetException Do I have a problem with "packageing"?? Kenneth Klein Systems Specialist 502-868-3644 859-750-5179 (Cell) 502-868-2298 (Fax) [hidden email]
I think you have a conflict caused by the fact the List class was added to the java.util package when the Collection classes came in. Try fully qualifying the class name as java.awt.List. Rick On Tue, Jan 25, 2011 at 9:15 AM, <[hidden email]> wrote: > > Anybody got a working copy of Filelister.nrx? I found an old copy in the > book _Java in a Nutshell_ by David Flanagan. It is failing with this: > > > -verbose5 Filelister.nrx <--- this was passed to the script > Usage: ./NetRexxC.sh [-run] [other options] filename > > NetRexx portable processor, version 2.05 > Copyright (c) IBM Corporation, 2005. All rights reserved. > Program Filelister.nrx > 6 +++ class FileLister extends Frame public > +++ ^^^^^^^^^^ > +++ Warning: Public class name changed to same case as program name > 'Filelister' > === class Filelister === > constructor FileLister(String,FilenameFilter) > 21 +++ dirList = List(12, 0) > +++ ^^^^ > +++ Error: The constructor 'List(byte,byte)' cannot be found in class > 'java.util.List' > > > Kenneth Klein > Systems Specialist > 502-868-3644 > 859-750-5179 (Cell) > 502-868-2298 (Fax) > [hidden email] > _______________________________________________ > Ibm-netrexx mailing list > [hidden email] > > > _______________________________________________ Ibm-netrexx mailing list [hidden email] _______________________________________________ Ibm-netrexx mailing list [hidden email] |
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RuntimeException: java.lang.InstantiationException: FileLister You need an instance of FileLister. Post your source. From: [hidden email] [mailto:[hidden email]] On Behalf Of [hidden email]
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You can tell how new I am at this. I'm experimenting with the import statements and for some reason I see no trace results in the java console where I see the other error info. This is getting executed as an applet from a short piece of html under IE. Thanks for looking at the source, Mike M. -- This example is from the book _Java in a Nutshell_ by David Flanagan. -- Written by David Flanagan. Copyright (c) 1996 O'Reilly & Associates. -- You may study, use, modify, and distribute this example for any purpose. -- This example is provided WITHOUT WARRANTY either expressed or implied. import FileLister; import FileViewer; import EndsWithFilter; class FileLister extends Frame public trace results properties private dirList=java.awt.List; infoArea=TextField buttons=Panel parent=Button; quit=Button filter=FilenameFilter cwd=File entries=String[] -- Create the graphical user interface, and list the initial directory. method FileLister(directory=String, f=FilenameFilter) public super("File Lister") this.filter = f dirList = java.awt.List(12, 0) infoarea = TextField() infoarea.setEditable(0) buttons = Panel() parent = Button("Up a Directory"); quit = Button("Quit"); buttons.add(parent); buttons.add(quit); this.add("Center", dirList); this.add("South", infoarea); this.add("North", buttons); this.resize(550, 350); this.show(); -- list the initial directory. list_directory(directory); -- This method uses the list() method to get all entries in a directory -- and then displays them in the List component. method list_directory(directory=String) Signals IllegalArgumentException public dir = File(directory); if (\dir.isDirectory) then Signal IllegalArgumentException("FileLister: no such directory"); dirList.clear(); cwd = dir; this.setTitle(directory); entries = cwd.list(filter); loop i = 0 to entries.length -1 dirList.addItem(entries[i]); end -- This method uses various File methods to obtain information about -- a file or directory. Then it displays that info in a TextField. method show_info(filename=String) Signals IllegalArgumentException public f = File(cwd, filename); info=String if \f.exists then Signal IllegalArgumentException("FileLister.show_info(): no such file or directory"); if f.isDirectory then info = "Directory: " else info = "File: " info = info ||filename" " if (f.canRead) then info = info||"read " else info = info||" " if (f.canWrite) then info = info||"write " else info = info||" " info = info ||f.length" "||java.util.Date(f.lastModified()); infoarea.setText(info); -- This method handles the buttons and list events. method handleEvent(e=Event) public returns boolean if (e.target = quit) then exit 0 else if (e.target = parent) then do p = cwd.getParent() if (p = null) then p = "/"; -- Bug workaround do list_directory(p) catch IllegalArgumentException infoarea.setText("Already at top"); end; return 1; -- catch IOException -- infoarea.setText("I/O Error") end else if (e.target = dirList) then do -- when an item is selected, show its info. if (e.id = Event.LIST_SELECT) then do show_info(entries[(Integer e.arg).intValue]) -- catch IOException -- infoarea.setText("I/O Error") end -- When the user double-clicks, change to the selected directory -- or display the selected file. else if (e.id = Event.ACTION_EVENT) then do item = File(cwd, String e.arg).getAbsolutePath; do list_directory(item) catch IllegalArgumentException FileViewer(item) end return 1; -- catch IOException -- infoarea.setText("I/O Error") end end return super.handleEvent(e); method usage public static Say "Usage: java FileLister [directory_name] [-e file_extension]" exit 0 -- Parse command line arguments and create the FileLister object. -- If an extension is specified, create a FilenameFilter for it. -- If no directory is specified, use the current directory. method main(args=String[]) public static fl = FilenameFilter null directory = String null; loop i = 0 to args.length - 1 if args[i] = "-e" then do i = i + 1; if (i >= args.length) then usage(); fl = EndsWithFilter(args[i]); end else do if (directory \= null) then usage(); -- Already set else directory = args[i] end end -- if no directory specified, use the current directoy if (directory = null) then directory = System.getProperty("user.dir"); -- Create the FileLister object f = FileLister(directory, fl) -- This class is a simple FilenameFilter. It defines the required accept() -- method to determine whether a specified file should be listed. A file -- will be listed if its name ends with the specified extension, or if -- it is a directory. class EndsWithFilter implements FilenameFilter properties private extension = String method EndsWithFilter(ext=String) public this.extension = ext; method accept(dir=File, name=String) public returns boolean if (name.endsWith(extension)) then return 1; else return (File(dir, name)).isDirectory(); Kenneth Klein Systems Specialist 502-868-3644 859-750-5179 (Cell) 502-868-2298 (Fax) [hidden email] _______________________________________________ Ibm-netrexx mailing list [hidden email] |
Re: List(byte,byte) cannot be found in class
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In your original post, you had the following warning issued:
6 +++ class FileLister extends Frame public +++ ^^^^^^^^^^ +++ Warning: Public class name changed to same case as program name 'Filelister' === class Filelister === constructor FileLister(String,FilenameFilter) 21 +++ dirList = List(12, 0) +++ ^^^^ +++ Error: The constructor 'List(byte,byte)' cannot be found in class 'java.util.List' Have you corrected this problem by changing the filename of the source? This will result in a class with the name "Filelister" getting created rather than "FileLister". Case is significant, so that might be the cause of your problem. Rick On Wed, Jan 26, 2011 at 9:15 AM, <[hidden email]> wrote: > > You can tell how new I am at this. I'm experimenting with the import > statements and for some reason I see no trace results in the java console > where I see the other error info. This is getting executed as an applet from > a short piece of html under IE. > > Thanks for looking at the source, Mike M. > > > -- This example is from the book _Java in a Nutshell_ by David Flanagan. > -- Written by David Flanagan. Copyright (c) 1996 O'Reilly & Associates. > -- You may study, use, modify, and distribute this example for any purpose. > -- This example is provided WITHOUT WARRANTY either expressed or implied. > import FileLister; > import FileViewer; > import EndsWithFilter; > class FileLister extends Frame public > trace results > properties private > dirList=java.awt.List; > infoArea=TextField > buttons=Panel > parent=Button; quit=Button > filter=FilenameFilter > cwd=File > entries=String[] > > -- Create the graphical user interface, and list the initial directory. > method FileLister(directory=String, f=FilenameFilter) public > > super("File Lister") > this.filter = f > dirList = java.awt.List(12, 0) > infoarea = TextField() > infoarea.setEditable(0) > buttons = Panel() > parent = Button("Up a Directory"); > quit = Button("Quit"); > buttons.add(parent); > buttons.add(quit); > this.add("Center", dirList); > this.add("South", infoarea); > this.add("North", buttons); > this.resize(550, 350); > this.show(); > > -- list the initial directory. > list_directory(directory); > > -- This method uses the list() method to get all entries in a directory > -- and then displays them in the List component. > method list_directory(directory=String) Signals IllegalArgumentException > public > dir = File(directory); > > if (\dir.isDirectory) then > Signal IllegalArgumentException("FileLister: no such directory"); > dirList.clear(); > cwd = dir; > this.setTitle(directory); > > entries = cwd.list(filter); > loop i = 0 to entries.length -1 > dirList.addItem(entries[i]); > end > > -- This method uses various File methods to obtain information about > -- a file or directory. Then it displays that info in a TextField. > method show_info(filename=String) Signals IllegalArgumentException public > > f = File(cwd, filename); > info=String > > if \f.exists then > Signal IllegalArgumentException("FileLister.show_info(): no such file > or directory"); > > if f.isDirectory then info = "Directory: " > else info = "File: " > > info = info ||filename" " > > if (f.canRead) then info = info||"read " > else info = info||" " > if (f.canWrite) then info = info||"write " > else info = info||" " > > info = info ||f.length" "||java.util.Date(f.lastModified()); > > infoarea.setText(info); > > -- This method handles the buttons and list events. > method handleEvent(e=Event) public returns boolean > if (e.target = quit) then exit 0 > else if (e.target = parent) then do > p = cwd.getParent() > if (p = null) then p = "/"; -- Bug workaround > do > list_directory(p) > catch IllegalArgumentException > infoarea.setText("Already at top"); > end; > return 1; > -- catch IOException > -- infoarea.setText("I/O Error") > end > else if (e.target = dirList) then do > -- when an item is selected, show its info. > if (e.id = Event.LIST_SELECT) then do > show_info(entries[(Integer e.arg).intValue]) > -- catch IOException > -- infoarea.setText("I/O Error") > end > -- When the user double-clicks, change to the selected directory > -- or display the selected file. > else if (e.id = Event.ACTION_EVENT) then do > item = File(cwd, String e.arg).getAbsolutePath; > do > list_directory(item) > catch IllegalArgumentException > FileViewer(item) > end > return 1; > -- catch IOException > -- infoarea.setText("I/O Error") > end > end > return super.handleEvent(e); > > > method usage public static > Say "Usage: java FileLister [directory_name] [-e file_extension]" > exit 0 > > -- Parse command line arguments and create the FileLister object. > -- If an extension is specified, create a FilenameFilter for it. > -- If no directory is specified, use the current directory. > method main(args=String[]) public static > fl = FilenameFilter null > directory = String null; > > loop i = 0 to args.length - 1 > if args[i] = "-e" then do > i = i + 1; > if (i >= args.length) then usage(); > fl = EndsWithFilter(args[i]); > end > else do > if (directory \= null) then usage(); -- Already set > else directory = args[i] > end > end > > -- if no directory specified, use the current directoy > if (directory = null) then directory = System.getProperty("user.dir"); > -- Create the FileLister object > f = FileLister(directory, fl) > > -- This class is a simple FilenameFilter. It defines the required accept() > -- method to determine whether a specified file should be listed. A file > -- will be listed if its name ends with the specified extension, or if > -- it is a directory. > class EndsWithFilter implements FilenameFilter > properties private > extension = String > method EndsWithFilter(ext=String) public > this.extension = ext; > > method accept(dir=File, name=String) public returns boolean > if (name.endsWith(extension)) then return 1; > else return (File(dir, name)).isDirectory(); > > > > Kenneth Klein > Systems Specialist > 502-868-3644 > 859-750-5179 (Cell) > 502-868-2298 (Fax) > [hidden email] > _______________________________________________ > Ibm-netrexx mailing list > [hidden email] > > > _______________________________________________ Ibm-netrexx mailing list [hidden email] |
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Good catch, Rick, but I have straightened that out. I am now using _F_ile_Li_ster (FileLister) everywhere. Maybe I should use "*F*ile*L*ister". Kenneth Klein Systems Specialist 502-868-3644 859-750-5179 (Cell) 502-868-2298 (Fax) [hidden email]
In your original post, you had the following warning issued: 6 +++ class FileLister extends Frame public +++ ^^^^^^^^^^ +++ Warning: Public class name changed to same case as program name 'Filelister' === class Filelister === constructor File > _______________________________________________ > Ibm-netrexx mailing list > [hidden email] > > > _______________________________________________ Ibm-netrexx mailing list [hidden email] _______________________________________________ Ibm-netrexx mailing list [hidden email] |
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In reply to this post by kenner
Ok, so other than lots of this being depreciated in newer java, here’s what I see: At 110: Won’t compile because you don’t have a FileViewer method – also this is really really bad form – potentially a loop if it did work catch IllegalArgumentException FileViewer(item) end So I changed it to this: catch IllegalArgumentException say 'Invalid argument' item return end When I run that I get the nice file list and the trace in a background window. Cheers From: [hidden email] [mailto:[hidden email]] On Behalf Of [hidden email]
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Thanks for testing it, Mark. The "FileViewer" class is in another file in that directory. My compile is fine, now. And I can run it as an application when I putty into omvs, but without X11 there is no graphics support. I want to run this code as an applet from a stub of html under my IE on Windoze AP. I'm looking into how applets differ from applications. Kenneth Klein Systems Specialist 502-868-3644 859-750-5179 (Cell) 502-868-2298 (Fax) [hidden email]
Ok, so other than lots of this being depreciated in newer java, here’s what I see: At 110: Won’t compile because you don’t have a FileViewer method – also this is really really bad form – potentially a loop if it did work catch IllegalArgumentException FileViewer(item) end So I changed it to this: catch IllegalArgumentException say 'Invalid argument' item return end When I run that I get the nice file list and the trace in a background window. Cheers From: [hidden email] [mailto:[hidden email]] On Behalf Of [hidden email] Sent: Wednesday, January 26, 2011 8:16 AM To: IBM Netrexx Subject: RE: [Ibm-netrexx] List(byte,byte) cannot be found in class You can tell how new I am at this. I'm experimenting with the import statements and for some reason I see no trace results in the java console where I see the other error info. This is getting executed as an applet from a short piece of html under IE. Thanks for looking at the source, Mike M. -- This example is from the book _Java in a Nutshell_ by David Flanagan. -- Written by David Flanagan. Copyright (c) 1996 O'Reilly & Associates. -- You may study, use, modify, and distribute this example for any purpose. -- This example is provided WITHOUT WARRANTY either expressed or implied. import FileLister; import FileViewer; import EndsWithFilter; class FileLister extends Frame public trace results properties private dirList=java.awt.List; infoArea=TextField buttons=Panel parent=Button; quit=Button filter=FilenameFilter cwd=File entries=String[] -- Create the graphical user interface, and list the initial directory. method FileLister(directory=String, f=FilenameFilter) public super("File Lister") this.filter = f dirList = java.awt.List(12, 0) infoarea = TextField() infoarea.setEditable(0) buttons = Panel() parent = Button("Up a Directory"); quit = Button("Quit"); buttons.add(parent); buttons.add(quit); this.add("Center", dirList); this.add("South", infoarea); this.add("North", buttons); this.resize(550, 350); this.show(); -- list the initial directory. list_directory(directory); -- This method uses the list() method to get all entries in a directory -- and then displays them in the List component. method list_directory(directory=String) Signals IllegalArgumentException public dir = File(directory); if (\dir.isDirectory) then Signal IllegalArgumentException("FileLister: no such directory"); dirList.clear(); cwd = dir; this.setTitle(directory); entries = cwd.list(filter); loop i = 0 to entries.length -1 dirList.addItem(entries[i]); end -- This method uses various File methods to obtain information about -- a file or directory. Then it displays that info in a TextField. method show_info(filename=String) Signals IllegalArgumentException public f = File(cwd, filename); info=String if \f.exists then Signal IllegalArgumentException("FileLister.show_info(): no such file or directory"); if f.isDirectory then info = "Directory: " else info = "File: " info = info ||filename" " if (f.canRead) then info = info||"read " else info = info||" " if (f.canWrite) then info = info||"write " else info = info||" " info = info ||f.length" "||java.util.Date(f.lastModified()); infoarea.setText(info); -- This method handles the buttons and list events. method handleEvent(e=Event) public returns boolean if (e.target = quit) then exit 0 else if (e.target = parent) then do p = cwd.getParent() if (p = null) then p = "/"; -- Bug workaround do list_directory(p) catch IllegalArgumentException infoarea.setText("Already at top"); end; return 1; -- catch IOException -- infoarea.setText("I/O Error") end else if (e.target = dirList) then do -- when an item is selected, show its info. if (e.id = Event.LIST_SELECT) then do show_info(entries[(Integer e.arg).intValue]) -- catch IOException -- infoarea.setText("I/O Error") end -- When the user double-clicks, change to the selected directory -- or display the selected file. else if (e.id = Event.ACTION_EVENT) then do item = File(cwd, String e.arg).getAbsolutePath; do list_directory(item) catch IllegalArgumentException FileViewer(item) end return 1; -- catch IOException -- infoarea.setText("I/O Error") end end return super.handleEvent(e); method usage public static Say "Usage: java FileLister [directory_name] [-e file_extension]" exit 0 -- Parse command line arguments and create the FileLister object. -- If an extension is specified, create a FilenameFilter for it. -- If no directory is specified, use the current directory. method main(args=String[]) public static fl = FilenameFilter null directory = String null; loop i = 0 to args.length - 1 if args[i] = "-e" then do i = i + 1; if (i >= args.length) then usage(); fl = EndsWithFilter(args[i]); end else do if (directory \= null) then usage(); -- Already set else directory = args[i] end end -- if no directory specified, use the current directoy if (directory = null) then directory = System.getProperty("user.dir"); -- Create the FileLister object f = FileLister(directory, fl) -- This class is a simple FilenameFilter. It defines the required accept() -- method to determine whether a specified file should be listed. A file -- will be listed if its name ends with the specified extension, or if -- it is a directory. class EndsWithFilter implements FilenameFilter properties private extension = String method EndsWithFilter(ext=String) public this.extension = ext; method accept(dir=File, name=String) public returns boolean if (name.endsWith(extension)) then return 1; else return (File(dir, name)).isDirectory(); Kenneth Klein Systems Specialist 502-868-3644 859-750-5179 (Cell) 502-868-2298 (Fax) [hidden email]_______________________________________________ Ibm-netrexx mailing list [hidden email] _______________________________________________ Ibm-netrexx mailing list [hidden email] |
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Applets are small Applications are larger One is for the client The other for the server Applets don’t have Main’s and are confined/limited by the browser. Applets extend the applet class, not the frame which you use if you were writing an application. Both share some methods like paint(). If you want to run it from omvs, then fire up an http server on omvs. Bettter yet, write an http server in NetRexx. I can show you a sample. ;-) From: [hidden email] [mailto:[hidden email]] On Behalf Of [hidden email]
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Re: List(byte,byte) cannot be found in class
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I don't know what I would do with it -- but I'd like to see a copy.
BOBH
On Wed, Jan 26, 2011 at 4:51 PM, Measel, Mike <[hidden email]> wrote:
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In reply to this post by measel
Thanks again. Good tips. We do have IBM's HTTPD running on z/os with omvs. Is that what you mean by a server on omvs? Kenneth Klein
Applets are small Applications are larger One is for the client The other for the server Applets don’t have Main’s and are confined/limited by the browser. Applets extend the applet class, not the frame which you use if you were writing an application. Both share some methods like paint(). If you want to run it from omvs, then fire up an http server on omvs. Bettter yet, write an http server in NetRexx. I can show you a sample. ;-) From: [hidden email] [mailto:[hidden email]] On Behalf Of [hidden email] Sent: Wednesday, January 26, 2011 2:14 PM To: IBM Netrexx Subject: RE: [Ibm-netrexx] List(byte,byte) cannot be found in class Thanks for testing it, Mark. The "FileViewer" class is in another file in that directory. My compile is fine, now. And I can run it as an application when I putty into omvs, but without X11 there is no graphics support. I want to run this code as an applet from a stub of html under my IE on Windoze AP. I'm looking into how applets differ from applications. Kenneth Klein Systems Specialist 502-868-3644 859-750-5179 (Cell) 502-868-2298 (Fax) [hidden email]
Ok, so other than lots of this being depreciated in newer java, here’s what I see: At 110: Won’t compile because you don’t have a FileViewer method – also this is really really bad form – potentially a loop if it did work catch IllegalArgumentException FileViewer(item) end So I changed it to this: catch IllegalArgumentException say 'Invalid argument' item return end When I run that I get the nice file list and the trace in a background window. Cheers From: [hidden email] [mailto:[hidden email]] On Behalf Of [hidden email] Sent: Wednesday, January 26, 2011 8:16 AM To: IBM Netrexx Subject: RE: [Ibm-netrexx] List(byte,byte) cannot be found in class You can tell how new I am at this. I'm experimenting with the import statements and for some reason I see no trace results in the java console where I see the other error info. This is getting executed as an applet from a short piece of html under IE. Thanks for looking at the source, Mike M. -- This example is from the book _Java in a Nutshell_ by David Flanagan. -- Written by David Flanagan. Copyright (c) 1996 O'Reilly & Associates. -- You may study, use, modify, and distribute this example for any purpose. -- This example is provided WITHOUT WARRANTY either expressed or implied. import FileLister; import FileViewer; import EndsWithFilter; class FileLister extends Frame public trace results properties private dirList=java.awt.List; infoArea=TextField buttons=Panel parent=Button; quit=Button filter=FilenameFilter cwd=File entries=String[] -- Create the graphical user interface, and list the initial directory. method FileLister(directory=String, f=FilenameFilter) public super("File Lister") this.filter = f dirList = java.awt.List(12, 0) infoarea = TextField() infoarea.setEditable(0) buttons = Panel() parent = Button("Up a Directory"); quit = Button("Quit"); buttons.add(parent); buttons.add(quit); this.add("Center", dirList); this.add("South", infoarea); this.add("North", buttons); this.resize(550, 350); this.show(); -- list the initial directory. list_directory(directory); -- This method uses the list() method to get all entries in a directory -- and then displays them in the List component. method list_directory(directory=String) Signals IllegalArgumentException public dir = File(directory); if (\dir.isDirectory) then Signal IllegalArgumentException("FileLister: no such directory"); dirList.clear(); cwd = dir; this.setTitle(directory); entries = cwd.list(filter); loop i = 0 to entries.length -1 dirList.addItem(entries[i]); end -- This method uses various File methods to obtain information about -- a file or directory. Then it displays that info in a TextField. method show_info(filename=String) Signals IllegalArgumentException public f = File(cwd, filename); info=String if \f.exists then Signal IllegalArgumentException("FileLister.show_info(): no such file or directory"); if f.isDirectory then info = "Directory: " else info = "File: " info = info ||filename" " if (f.canRead) then info = info||"read " else info = info||" " if (f.canWrite) then info = info||"write " else info = info||" " info = info ||f.length" "||java.util.Date(f.lastModified()); infoarea.setText(info); -- This method handles the buttons and list events. method handleEvent(e=Event) public returns boolean if (e.target = quit) then exit 0 else if (e.target = parent) then do p = cwd.getParent() if (p = null) then p = "/"; -- Bug workaround do list_directory(p) catch IllegalArgumentException infoarea.setText("Already at top"); end; return 1; -- catch IOException -- infoarea.setText("I/O Error") end else if (e.target = dirList) then do -- when an item is selected, show its info. if (e.id = Event.LIST_SELECT) then do show_info(entries[(Integer e.arg).intValue]) -- catch IOException -- infoarea.setText("I/O Error") end -- When the user double-clicks, change to the selected directory -- or display the selected file. else if (e.id = Event.ACTION_EVENT) then do item = File(cwd, String e.arg).getAbsolutePath; do list_directory(item) catch IllegalArgumentException FileViewer(item) end return 1; -- catch IOException -- infoarea.setText("I/O Error") end end return super.handleEvent(e); method usage public static Say "Usage: java FileLister [directory_name] [-e file_extension]" exit 0 -- Parse command line arguments and create the FileLister object. -- If an extension is specified, create a FilenameFilter for it. -- If no directory is specified, use the current directory. method main(args=String[]) public static fl = FilenameFilter null directory = String null; loop i = 0 to args.length - 1 if args[i] = "-e" then do i = i + 1; if (i >= args.length) then usage(); fl = EndsWithFilter(args[i]); end else do if (directory \= null) then usage(); -- Already set else directory = args[i] end end -- if no directory specified, use the current directoy if (directory = null) then directory = System.getProperty("user.dir"); -- Create the FileLister object f = FileLister(directory, fl) -- This class is a simple FilenameFilter. It defines the required accept() -- method to determine whether a specified file should be listed. A file -- will be listed if its name ends with the specified extension, or if -- it is a directory. class EndsWithFilter implements FilenameFilter properties private extension = String method EndsWithFilter(ext=String) public this.extension = ext; method accept(dir=File, name=String) public returns boolean if (name.endsWith(extension)) then return 1; else return (File(dir, name)).isDirectory(); Kenneth Klein Systems Specialist 502-868-3644 859-750-5179 (Cell) 502-868-2298 (Fax) [hidden email]_______________________________________________ Ibm-netrexx mailing list [hidden email] _______________________________________________ Ibm-netrexx mailing list [hidden email] _______________________________________________ Ibm-netrexx mailing list [hidden email] |
Re: List(byte,byte) cannot be found in class
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try pinging 127.0.0.1
bobh
On Thu, Jan 27, 2011 at 8:52 AM, <[hidden email]> wrote:
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In reply to this post by kenner
On 27 January 2011 06:52, <[hidden email]> wrote:
IBM's HTTPD is indeed a web server. It's a customized version of the good old Apache web server. Can you get to it from your web browser? http://your.host.name.or.ip.address.here should work unless someone changed the default listening port. Alan. -- Can't tweet, won't tweet! _______________________________________________ Ibm-netrexx mailing list [hidden email]
Alan
-- Needs more cowbell. |
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In reply to this post by Robert L Hamilton
Ping from where? My desktop where my browser runs? A putty session on the mainframe where HTTPD is running? Kenneth Klein Systems Specialist 502-868-3644 859-750-5179 (Cell) 502-868-2298 (Fax) [hidden email]
try pinging 127.0.0.1 bobh On Thu, Jan 27, 2011 at 8:52 AM, <kenneth.klein@...> wrote: Thanks again. Good tips. We do have IBM's HTTPD running on z/os with omvs. Is that what you mean by a server on omvs? Kenneth Klein
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In reply to this post by alansam
The HTTTP server is running and available on the entire network. We use it to offer up documentation, info, manuals, etc. And I can run the applet WordClock on it no problem. I can also run FileLister on my desktop as an application, it has a "main" method. But I can't run Filelister as an applet. I'm looking at Creating Java Aps Using Netrexx now. Kenneth Klein Systems Specialist 502-868-3644 859-750-5179 (Cell) 502-868-2298 (Fax) [hidden email]
On 27 January 2011 06:52, <kenneth.klein@...> wrote: Thanks again. Good tips. We do have IBM's HTTPD running on z/os with omvs. Is that what you mean by a server on omvs? Kenneth Klein IBM's HTTPD is indeed a web server. It's a customized version of the good old Apache web server. Can you get to it from your web browser? http://your.host.name.or.ip.address.here should work unless someone changed the default listening port. Alan. -- Can't tweet, won't tweet!_______________________________________________ Ibm-netrexx mailing list [hidden email] _______________________________________________ Ibm-netrexx mailing list [hidden email] |
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In reply to this post by kenner
On 27 January 2011 10:33, <[hidden email]> wrote:
Pinging the loopback is unlikely to shed any light on the problem anyway if you know your server is reachable from your desktop. Be aware though that getting your FileLister to run as an applet won't be the end of your problems. Java applets are tightly restricted to prevent things like local file system access to prevent them from being used as virus delivery engines. Alan. -- Can't tweet, won't tweet! _______________________________________________ Ibm-netrexx mailing list [hidden email]
Alan
-- Needs more cowbell. |
Re: List(byte,byte) cannot be found in class
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Maybe TSO,
BOBH On Thu, Jan 27, 2011 at 1:56 PM, Alan Sampson <[hidden email]> wrote:
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Re: List(byte,byte) cannot be found in class
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In reply to this post by measel
Hi;
I prefer Java Web Start to work around the limitations of applets in the sandbox, have full control over GUI etc. and still be able to run it from a remote https server. A plus is that way there's no need to explain users how to install first additional classes and jars, add to classpath etc etc - you can add those as requirements and install it seamlessly with Java Web Start (NetRexxR.jar for instance!). http://download.oracle.com/javase/1.5.0/docs/guide/javaws/index.html Note: If you update your app and classes the user has to clear it's cache to download the latest versions. kp Am Mittwoch, 26. Januar 2011, um 23:51:02 schrieb Measel, Mike: > Applets are small > > Applications are larger > > One is for the client > > The other for the server > > Applets don't have Main's and are confined/limited by the browser. > > Applets extend the applet class, not the frame which you use if you were > writing an application. > > Both share some methods like paint(). > > If you want to run it from omvs, then fire up an http server on omvs. > > Bettter yet, write an http server in NetRexx. I can show you a sample. > ;-) > > > > > > From: [hidden email] > [mailto:[hidden email]] On Behalf Of > [hidden email] > Sent: Wednesday, January 26, 2011 2:14 PM > To: IBM Netrexx > Subject: RE: [Ibm-netrexx] List(byte,byte) cannot be found in class > > > > > Thanks for testing it, Mark. The "FileViewer" class is in another file > in that directory. My compile is fine, now. And I can run it as an > application when I putty into omvs, but without X11 there is no graphics > support. I want to run this code as an applet from a stub of html under > my IE on Windoze AP. I'm looking into how applets differ from > applications. > > > Kenneth Klein > Systems Specialist > 502-868-3644 > 859-750-5179 (Cell) > 502-868-2298 (Fax) > [hidden email] > > > > "Measel, Mike" <[hidden email]> > Sent by: [hidden email] > > 01/26/2011 02:29 PM > > Please respond to > IBM Netrexx <[hidden email]> > > To > > "IBM Netrexx" <[hidden email]> > > cc > > > Subject > > RE: [Ibm-netrexx] List(byte,byte) cannot be found in class > > > > > > > > > Ok, so other than lots of this being depreciated in newer java, here's > what I see: > > At 110: Won't compile because you don't have a FileViewer method - also > this is really really bad form - potentially a loop if it did work > catch IllegalArgumentException > FileViewer(item) > end > > So I changed it to this: > > catch IllegalArgumentException > say 'Invalid argument' item > return > end > > When I run that I get the nice file list and the trace in a background > window. > > Cheers > > From: [hidden email] > [mailto:[hidden email]] On Behalf Of > [hidden email] > Sent: Wednesday, January 26, 2011 8:16 AM > To: IBM Netrexx > Subject: RE: [Ibm-netrexx] List(byte,byte) cannot be found in class > > > You can tell how new I am at this. I'm experimenting with the import > statements and for some reason I see no trace results in the java > console where I see the other error info. This is getting executed as an > applet from a short piece of html under IE. > > Thanks for looking at the source, Mike M. > > > -- This example is from the book _Java in a Nutshell_ by David Flanagan. > > -- Written by David Flanagan. Copyright (c) 1996 O'Reilly & Associates. > > -- You may study, use, modify, and distribute this example for any > purpose. > -- This example is provided WITHOUT WARRANTY either expressed or > implied. > import FileLister; > import FileViewer; > import EndsWithFilter; > class FileLister extends Frame public > trace results > properties private > dirList=java.awt.List; > infoArea=TextField > buttons=Panel > parent=Button; quit=Button > filter=FilenameFilter > cwd=File > entries=String[] > > -- Create the graphical user interface, and list the initial directory. > method FileLister(directory=String, f=FilenameFilter) public > > super("File Lister") > this.filter = f > dirList = java.awt.List(12, 0) > infoarea = TextField() > infoarea.setEditable(0) > buttons = Panel() > parent = Button("Up a Directory"); > quit = Button("Quit"); > buttons.add(parent); > buttons.add(quit); > this.add("Center", dirList); > this.add("South", infoarea); > this.add("North", buttons); > this.resize(550, 350); > this.show(); > > -- list the initial directory. > list_directory(directory); > > -- This method uses the list() method to get all entries in a directory > -- and then displays them in the List component. > method list_directory(directory=String) Signals IllegalArgumentException > public > dir = File(directory); > > if (\dir.isDirectory) then > Signal IllegalArgumentException("FileLister: no such directory"); > dirList.clear(); > cwd = dir; > this.setTitle(directory); > > entries = cwd.list(filter); > loop i = 0 to entries.length -1 > dirList.addItem(entries[i]); > end > > -- This method uses various File methods to obtain information about > -- a file or directory. Then it displays that info in a TextField. > method show_info(filename=String) Signals IllegalArgumentException > public > > f = File(cwd, filename); > info=String > > if \f.exists then > Signal IllegalArgumentException("FileLister.show_info(): no such > file or directory"); > > if f.isDirectory then info = "Directory: " > else info = "File: " > > info = info ||filename" " > > if (f.canRead) then info = info||"read " > else info = info||" " > if (f.canWrite) then info = info||"write " > else info = info||" " > > info = info ||f.length" "||java.util.Date(f.lastModified()); > > infoarea.setText(info); > > -- This method handles the buttons and list events. > method handleEvent(e=Event) public returns boolean > if (e.target = quit) then exit 0 > else if (e.target = parent) then do > p = cwd.getParent() > if (p = null) then p = "/"; -- Bug workaround > do > list_directory(p) > catch IllegalArgumentException > infoarea.setText("Already at top"); > end; > return 1; > -- catch IOException > -- infoarea.setText("I/O Error") > end > else if (e.target = dirList) then do > -- when an item is selected, show its info. > if (e.id = Event.LIST_SELECT) then do > show_info(entries[(Integer e.arg).intValue]) > -- catch IOException > -- infoarea.setText("I/O Error") > end > -- When the user double-clicks, change to the selected directory > -- or display the selected file. > else if (e.id = Event.ACTION_EVENT) then do > item = File(cwd, String e.arg).getAbsolutePath; > do > list_directory(item) > catch IllegalArgumentException > FileViewer(item) > end > return 1; > -- catch IOException > -- infoarea.setText("I/O Error") > end > end > return super.handleEvent(e); > > > method usage public static > Say "Usage: java FileLister [directory_name] [-e file_extension]" > exit 0 > > -- Parse command line arguments and create the FileLister object. > -- If an extension is specified, create a FilenameFilter for it. > -- If no directory is specified, use the current directory. > method main(args=String[]) public static > fl = FilenameFilter null > directory = String null; > > loop i = 0 to args.length - 1 > if args[i] = "-e" then do > i = i + 1; > if (i >= args.length) then usage(); > fl = EndsWithFilter(args[i]); > end > else do > if (directory \= null) then usage(); -- Already set > else directory = args[i] > end > end > > -- if no directory specified, use the current directoy > if (directory = null) then directory = System.getProperty("user.dir"); > > -- Create the FileLister object > f = FileLister(directory, fl) > > -- This class is a simple FilenameFilter. It defines the required > accept() > -- method to determine whether a specified file should be listed. A > file > -- will be listed if its name ends with the specified extension, or if > -- it is a directory. > class EndsWithFilter implements FilenameFilter > properties private > extension = String > method EndsWithFilter(ext=String) public > this.extension = ext; > > method accept(dir=File, name=String) public returns boolean > if (name.endsWith(extension)) then return 1; > else return (File(dir, name)).isDirectory(); > > > > Kenneth Klein > Systems Specialist > 502-868-3644 > 859-750-5179 (Cell) > 502-868-2298 (Fax) > [hidden email].com___________________________________________ > ____ > Ibm-netrexx mailing list > [hidden email] _______________________________________________ Ibm-netrexx mailing list [hidden email] |
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Well, now I'm struggling with java web start and it sounds fascinating. But it doesn't seem to be on our Z/os 1.10 system with java CP1FA A00002T Tue 10:19:08 / % java -version java version "1.5.0" Java(TM) 2 Runtime Environment, Standard Edition (build pmz64dev-20091106 (SR11 )) IBM J9 VM (build 2.3, J2RE 1.5.0 IBM J9 2.3 z/OS s390x-64 j9vmmz6423-20091104 (JIT enabled) J9VM - 20091103_45935_BHdSMr JIT - 20091016_1845_r8 GC - 20091026_AA) JCL - 20091106 although I thought the sun website said that jaws was part of the base install now. I can't find *jnlp* anywhere on the hfs. Kenneth Klein Systems Specialist 502-868-3644 859-750-5179 (Cell) 502-868-2298 (Fax) [hidden email] _______________________________________________ Ibm-netrexx mailing list [hidden email] |
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