appletdemo.java

JAVA编程思想源代码 值得一下 很难找的

package chapter12;

import java.applet.Applet;
import java.awt.Color;
import java.awt.Graphics;

import javax.swing.JButton;

public class AppletDemo extends Applet {
	JButton button;

	int sum;

	public void init() { //Applet初始化，添加一个按钮

		button = new JButton("按钮示例");
		add(button);
	}

	public void start() { //启动Applet开始运行，计算从1加到50的结果
		sum = 0;
		for (int i = 1; i <= 50; i++) {
			sum = sum + i;
		}
	}

	public void stop() { //此处可添加停止Applet时要执行的代码块
	}

	public void destroy() { //此处可添加销毁Applet时要执行的代码块
	}

	public void paint(Graphics g) { //Applet的描绘

		g.setColor(Color.red);
		g.drawString("This is the first Applet！", 20, 60);
		g.setColor(Color.blue);
		g.drawString("从1加到50的结果为：" + sum, 20, 100);
	}

}