commapplet1.java

java的一系列产品中包括jsme,jmse,j2ee,本文件提供j2ee实现的源代码.

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

public class CommApplet1 extends Applet{
	TextField tf = new TextField("CommApplet2,你能收到吗?",20); //定义文本框
	Button b = new Button("发送到CommApplet2"); //发送按钮
	public void init(){
		//设置布局管理器为FlowLayout
		setLayout(new FlowLayout());
		add(tf);
		add(b);
	}

	public boolean action(Event ev, Object obj){//处理按钮事件
		if(ev.target instanceof Button){//如果事件是从按钮来的
			String msg = tf.getText(); 
			CommApplet2 applet2 = (CommApplet2)getAppletContext().getApplet("commapplet2");
			if(applet2 != null){//取Applet2的句柄
				applet2.AppendText(msg); //调用applet2中的函数
				return true;
			}else{
				tf.setText("没有找到CommApplet2");
				return false;
			}
		}
		return false;
	}
}