ADVANCED GUIS AND GRAPHICS - Java Programming: From Problem Analysis to Program Design - page 846

setJMenuBar(menuMB);
setFileMenu();
setEditMenu();
setSize(300, 200);

setVisible( true );
setDefaultCloseOperation(EXIT_ON_CLOSE);

}

private void setFileMenu()
{

fileM = new JMenu("File");
menuMB.add(fileM);
exitI = new JMenuItem("Exit");
fileM.add(exitI);
exitI.addActionListener( this );

}

private void setEditMenu()
{

editM = new JMenu("Edit");
menuMB.add(editM);
cutI = new JMenuItem("Cut");
editM.add(cutI);
cutI.addActionListener( this );
copyI = new JMenuItem("Copy");
editM.add(copyI);
copyI.addActionListener( this );
pasteI = new JMenuItem("Paste");
editM.add(pasteI);
pasteI.addActionListener( this );
selectI = new JMenuItem("Select All");
editM.add(selectI);
selectI.addActionListener( this );

}

public void actionPerformed(ActionEvent e)
{

JMenuItem mItem = (JMenuItem) e.getSource();

if (mItem == exitI)
{

System.exit(0);

}
else if (mItem == cutI)
{

scratchpad = pageTA.getSelectedText();
pageTA.replaceRange("",
pageTA.getSelectionStart(),
pageTA.getSelectionEnd());

}