decorateframetest.java

编程之道--java程序设计入门源代码

/**
 *　美化一个框架
 */

import javax.swing.JFrame;
import java.awt.Toolkit;
import java.awt.Image;
import java.awt.Dimension;

public class DecorateFrameTest
{
	public static void main(String[] args)
	{
		BlankFrame frame = new BlankFrame();
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		frame.show();
	} 
}

class BlankFrame extends JFrame
{
	private static final int WIDTH = 300;
	private static final int HEIGHT = 200;
	public BlankFrame()
	{
		Toolkit kit = Toolkit.getDefaultToolkit();
		Dimension screenSize = kit.getScreenSize();
		int width = screenSize.width;
		int height = screenSize.height;
		int x = (width - WIDTH)/2;
		int y = (height - HEIGHT)/2;
		setLocation(x, y);//设置坐标起点
		setSize(WIDTH, HEIGHT);//设置框架的大小
		Image image = kit.getImage("duke.gif");// duke.gif为图像文件名
		setIconImage(image);//设置框架图标
		setTitle("这是我美化的框架");
		setResizable(false);
	}
}