e5_test.java

java 初学者学习实例

import java.applet.*;
import java.awt.*;
class Dwindow extends Frame
{
	Button button1,button2;
	Dwindow(String s)
	{
		super(s);
		//setLayout(new GridLayout(1,2));//去掉会是什么样子
		button1 = new Button("打开");
		button2 = new Button("关闭");
		add(button1);add(button2);
		setSize(100,100);
		setVisible(true);
		add(button1);add(button2);
	}
}
class Mydialog extends Dialog
{
	Button button1,button2;
	Mydialog(Frame f,String s)
	{
		super(f,s);
		button1 = new Button("open");
		button2 = new Button("close");
		setLayout(new FlowLayout());
		setSize(90,90);setVisible(true);
		setModal(true);
		add(button1);add(button2);
	}
}
 
public class E5_test extends Applet
{
	Dwindow window;Mydialog dialog;Button button;
	public void init()
	{
		window = new Dwindow("带对话窗口");
		dialog = new Mydialog(window,"我是对话框");
		button = new Button("ok");add(button);
	} 
}