Close the particular JInternalFrame on button click

Question

I am creating more than one JInternalFrame in the JDesktopPane. Each frame having one button. I want to close the particular frame on which button is clicked.

internalFrame = new JInternalFrame("Internal Frame", true, true, true, true);

    internalFrame.setSize(300, 300);
    internalFrame.setLocation(xPosition * openFrameCount, yPosition
            * openFrameCount);

    internalFrame.setContentPane(createContentPane());
    internalFrame.setJMenuBar(createPopJMenuBar());

    internalFrame.setVisible(true);

    JButton close = new JButton( "Close Me!" );  
    close.addActionListener( new ActionListener() {  
        public void actionPerformed( ActionEvent e ) {
                try {
                    internalFrame.setClosed( true );
                } catch (PropertyVetoException e1) {
                    e1.printStackTrace();
                }
        }  
    } );  
    internalFrame.add( close );  
    jdpDesktop.add(internalFrame);

By using the above code I am able to close the last created frame. Other frames are not closed.

Answer 1

Looks like you have internalFrame as a field of the enclosing class. Then it gets overwritten every time you create a new one. Use a local variable instead:

// Notice "final"
final JInternalFrame internalFrame = new JInternalFrame("Internal Frame", true, true, true, true);
...

That ensures that the internalFrame in each action listener refers to the one created a few lines above, not to the last created frame.