Java Mune & Button
Java Mune & Button
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| //package java_menu;
import java.awt.*;
import java.awt.event.*;
class BBB extends Button
{
private int tt=0;
public BBB() {
super("0");
addMouseListener( new MouseListener() {
public void mousePressed(MouseEvent e) {
setLabel(String.valueOf((++tt)));
}
public void mouseExited(MouseEvent e) {}
public void mouseReleased(MouseEvent e) {}
public void mouseEntered(MouseEvent e) {}
public void mouseClicked(MouseEvent e) {}
});
int x=(int)(Math.random()*10000), y=(int)(Math.random()*10000);
setBounds( x % 500+70, y % 300+70, 70, 70);
show();
}
}
class MenuExam extends Frame
{
public MenuExam()
{
super("abcdxyzk");
MenuBar bar = new MenuBar(); setMenuBar(bar);
Menu bb = new Menu(" bbb ");
MenuItem b1 = new MenuItem(" b1 ");
MenuItem b2 = new MenuItem(" b2 ");
bb.add(b1); bb.addSeparator(); bb.add(b2); bar.add(bb);
b2.addActionListener( new ActionListener() {
public void actionPerformed(ActionEvent e) {
BBB bbb = new BBB();
add(bbb);
}
});
setLayout(null); setSize(700, 500);
TextField tf = new TextField();
tf.setText("click b2");
tf.setFont(new Font("TimesRoman", Font.BOLD, 30));
tf.setEnabled(false);
tf.setBounds(100, 350, 200, 100);
add(tf);
show();
}
}
public class Main {
public static void main(String[] args) {
MenuExam mm = new MenuExam();
mm.addWindowListener( new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
}
}
|
