untitled1.java~1~

来自「java 猜大小 图形界面 简单的java程序 适合初学java GUI着」· JAVA~1~ 代码 · 共 54 行

package untitled1;

import java.awt.*;
import java.awt.event.*;
import java.util.*;

class Untitled2 {
    Frame f = new Frame("text");
    Label lb = new Label("");
    Button b1 = new Button("小");
    Button b2 = new Button("大");
    Panel pan = new Panel();
    Monitor bh = new Monitor();
    //Monitor bh2 = new Monitor();
   public  Untitled2() {

        b1.addActionListener(bh);
        b2.addActionListener(bh);

        b1.setSize(80, 20);
        b2.setSize(80, 20);

        pan.setSize(100, 100);

        pan.add(b2);
        pan.add(b1);
        f.add(pan);
        f.setSize(300, 200);
        f.setVisible(true);
    }
}


public class Untitled1 {
    public static void main(String args[]) {
        Untitled2 pp = new Untitled2();

    }
}


class Monitor implements ActionListener {
    public void actionPerformed(ActionEvent e) {
        String s=new String("");
                s=s+e.getActionCommand();
        Random x=new Random();
        int y=x.nextInt(100);
        lb.setText("y");

    }

}