為什么用paint方法后視窗就變黑了
package cn.wyq.game;
import javax.swing.*;
import java.awt.*;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
public class MyGameFrame extends JFrame{ @Override public void paint(Graphics g) { g.drawRect(100,200,100,200); } /*初始化視窗
*/ public void launchFrame(){ this.setTitle("計科魏永強作品"); this.setVisible(true); this.setSize(500,500); this.setLocation(300,300); this.addWindowListener(new WindowAdapter() { @Override public void windowClosing(WindowEvent e) { System.exit(0); } }); } public static void main(String[] args) { MyGameFrame f = new MyGameFrame(); f.launchFrame(); }
}
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標籤：Java EE
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