import java.awt.*;
import java.awt.event.*;
import java.util.Random;
import javax.swing.*;
public class Three extends JFrame implements ActionListener{
/**
*
*/
private static final long serialVersionUID = -8560277451929244119L;
JTextField tf = new JTextField();
JButton b1 = new JButton("开始");
JButton b2 = new JButton("停止");
JButton b3 = new JButton("END");
boolean isGo = false;
public Three() {
this.getContentPane().setLayout(null);
this.setExtendedState(JFrame.MAXIMIZED_BOTH);
tf.setBounds(80,90, 200, 200);
b1.setBounds(1,100,10,10);
b2.setBounds(1,200,10,10);
b3.setBounds(1,300,10,10);
this.getContentPane().add(tf);
this.getContentPane().add(b1);
this.getContentPane().add(b2);
this.getContentPane().add(b3);
b1.addActionListener(this);
b2.addActionListener(this);
b3.addActionListener(this);
SymListener sy = new SymListener();
b1.registerKeyboardAction(sy,KeyStroke.getKeyStroke(KeyEvent.VK_SPACE, 0), JComponent.WHEN_IN_FOCUSED_WINDOW);
b2.registerKeyboardAction(sy,KeyStroke.getKeyStroke(KeyEvent.VK_SPACE, 0), JComponent.WHEN_IN_FOCUSED_WINDOW);
b3.registerKeyboardAction(sy,KeyStroke.getKeyStroke(KeyEvent.VK_Q, 0), JComponent.WHEN_IN_FOCUSED_WINDOW);
b2.setEnabled(false);
this.setVisible(true);
tf.setText("888888");
go();
}
public void go() {
while (true) {
if (isGo == true) {
String s = "";
for (int j = 1; j <= 1; j++) {
int i = (int) (Math.random()*10000+1);//设定奖项总数
if (i < 10) {
s = s + "00000" + i;
} else if(i<100 & i>=10)
{
s = s + "0000" + i;
}else if(i<1000 & i>=100)
{
s = s + "000" + i;
}else if(i<10000 & i>=1000)
{
s = s + "00" + i;
}else if(i<100000 & i>=10000)
{
s = s + "0" + i;
}else
{
s = s + i;
}
}
tf.setText(s);
}
try {
Thread.sleep(10);
} catch (java.lang.InterruptedException e) {
e.printStackTrace();
}
}
}
public void actionPerformed(ActionEvent e) {
}
public static void main(String[] args) {
new Three();
}
class SymListener implements ActionListener {
public void actionPerformed(ActionEvent e) {
Object obj = e.getSource();
if (obj == b1) {
isGo = true;
b1.setEnabled(false);
b2.setEnabled(true);
} else if (obj == b2) {
isGo=false;
b2.setEnabled(false);
b1.setEnabled(true);
}else if (obj == b3) {
dispose();
}
}
}
}