String msg = "";
public void init() {
os = new List(4, true);
browser = new List(4, false);
// add items to os list
os.add("Windows XP");
os.add("Windows Vista");
os.add("Solaris");
os.add("Mac OS");
// add items to browser list
browser.add("Internet Explorer");
browser.add("Firefox");
browser.add("Opera");
browser.select(1);
// add lists to window
add(os);
add(browser);
// register to receive action events
os.addActionListener(this);
browser.addActionListener(this);
}
public void actionPerformed(ActionEvent ae) {
repaint();
}
// Display current selections.
public void paint(Graphics g) {
int idx[];
msg = "Current OS: ";
idx = os.getSelectedIndexes();
for(int i=0; i<idx.length; i++)
msg += os.getItem(idx[i]) + " ";
g.drawString(msg, 6, 120);
msg = "Current Browser: ";
msg += browser.getSelectedItem();
g.drawString(msg, 6, 140);
}
}
Sample output generated by the ListDemo applet is shown in Figure 24-5.
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