FileDialog.setFilenameFilter()

I let my class implement the FilenameFilter interface and override the boolean
accept(File,String)-method. Even if I let this function return false in every
case, still all files in the directory are displayed. Here is some code:

//open method
String open()
{
java.awt.FileDialog a=new java.awt.FileDialog
(
frame,
"Open een .jpg of .img file",
java.awt.FileDialog.LOAD
);
a.setFilenameFilter(this);
a.setVisible(true);
return a.getFile();
}




//accept, doesn't work
public boolean accept(java.io.File a,String b)
{
return false;
}






.

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