How to deal with variable length argument lists in java methods

[Dave Woodman]

This is probably my brain failing to recall something, but…

 

Consider the following java (deconstructed to the minimum for brevity):-

 

import javax.swing.filechooser.*;

 

public class Testit {  

      FileNameExtensionFilter filter = new FileNameExtensionFilter("JPEG file", "jpg", "jpeg");

}

 

This is fine, and is, indeed, the canonical example. FileNameExtensionFilter can take a variable number of parameters, although one would consider two to be the minimum useful number…

 

As for the NetRexx that is equivalent to this:-

 

import javax.swing.filechooser.

 

class Testit public

      properties public

      filter =  FileNameExtensionFilter("JPEG file", "jpg", "jpeg")

 

This gives…

The constructor 'FileNameExtensionFilter(java.lang.String,java.lang.String,java.lang.String)' cannot be found in class 'javax.swing.filechooser.FileNameExtensionFilter'

 

Has my grey matter gone offline, or my intellect poisoned by expose to too many languages? Or is there a trick, or limitation?

 

                Dave.

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[Kermit Kiser]

Java implements variable length parm lists by passing everything after the first parm as a string array. Try this syntax:

filter =  FileNameExtensionFilter("JPEG file", [String "jpg", "jpeg"])

-- Kermit

On 6/3/2014 5:00 AM, Dave Woodman wrote:

This is probably my brain failing to recall something, but…

 

Consider the following java (deconstructed to the minimum for brevity):-

 

import javax.swing.filechooser.*;

 

public class Testit {  

      FileNameExtensionFilter filter = new FileNameExtensionFilter("JPEG file", "jpg", "jpeg");

}

 

This is fine, and is, indeed, the canonical example. FileNameExtensionFilter can take a variable number of parameters, although one would consider two to be the minimum useful number…

 

As for the NetRexx that is equivalent to this:-

 

import javax.swing.filechooser.

 

class Testit public

      properties public

      filter =  FileNameExtensionFilter("JPEG file", "jpg", "jpeg")

 

This gives…

The constructor 'FileNameExtensionFilter(java.lang.String,java.lang.String,java.lang.String)' cannot be found in class 'javax.swing.filechooser.FileNameExtensionFilter'

 

Has my grey matter gone offline, or my intellect poisoned by expose to too many languages? Or is there a trick, or limitation?

 

                Dave.

---

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[Dave Woodman]

That would appear to have it covered – many thanks!

 

                Dave.

 

From: [hidden email] [mailto:[hidden email]] On Behalf Of Kermit Kiser
Sent: 03 June 2014 17:24
To: IBM Netrexx
Subject: Re: [Ibm-netrexx] How to deal with variable length argument lists in java methods

 

Java implements variable length parm lists by passing everything after the first parm as a string array. Try this syntax:

filter =  FileNameExtensionFilter("JPEG file", [String "jpg", "jpeg"])

-- Kermit

On 6/3/2014 5:00 AM, Dave Woodman wrote:

This is probably my brain failing to recall something, but…

 

Consider the following java (deconstructed to the minimum for brevity):-

 

import javax.swing.filechooser.*;

 

public class Testit {  

      FileNameExtensionFilter filter = new FileNameExtensionFilter("JPEG file", "jpg", "jpeg");

}

 

This is fine, and is, indeed, the canonical example. FileNameExtensionFilter can take a variable number of parameters, although one would consider two to be the minimum useful number…

 

As for the NetRexx that is equivalent to this:-

 

import javax.swing.filechooser.

 

class Testit public

      properties public

      filter =  FileNameExtensionFilter("JPEG file", "jpg", "jpeg")

 

This gives…

The constructor 'FileNameExtensionFilter(java.lang.String,java.lang.String,java.lang.String)' cannot be found in class 'javax.swing.filechooser.FileNameExtensionFilter'

 

Has my grey matter gone offline, or my intellect poisoned by expose to too many languages? Or is there a trick, or limitation?

 

                Dave.

 

---

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