receiver.java

来自「Java与面向对象程序设计实验教学讲义.复数类的实现,复数类的复杂运算,身份证号」· Java 代码 · 共 37 行

import java.applet.*;
import java.awt.*;
import java.awt.event.*;

public class Receiver extends Applet implements ActionListener{
    private final String waitingMessage = "Waiting for a message...           ";
    private Label label = new Label(waitingMessage, Label.RIGHT);

    public void init() {
        add(label);
        add(new Button("Clear"));
        add(new Label("(My name is " + getParameter("name") + ".)", 
                      Label.LEFT)); 
        validate();
    }

    public void actionPerformed(ActionEvent event) {
        label.setText(waitingMessage);
        repaint();
       
    }

    public void processRequestFrom(String senderName) {
    	Applet sender = null;
        label.setText("Received message from " + senderName + "!");
        repaint();
        sender = getAppletContext().getApplet(senderName);
        ((Sender)sender).receiveAnswer("I know!");
    }

    public void paint(Graphics g) {
        g.drawRect(0, 0, size().width - 1, size().height - 1);
    }

}