今天下午做的改变界面字体着色的JAVA程序...

今天搞这个字体程序搞了一下午,因为原本对JAVA的事件模型还不太了解,所以只能自己摸索着.

很容易看懂的程序,所以就不加注解了!!!

java 代码

import javax.swing.*;
import java.awt.*;
import java.awt.Color;
import java.awt.event.*;

public class MyFrame {

    /** Creates a new instance of Myframe */
    public static void main(String[] args) {
        SimpleFrame frame=new SimpleFrame();
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.show();
    }


}
class SimpleFrame extends JFrame{
    public SimpleFrame(){
        setTitle("还在写这个难看的程序");
        setSize(MYWIDTH,MYHEIGHT);
        MyPanel panel=new MyPanel();
        Container contentPane=getContentPane();
        contentPane.add(panel);

    }
    public static final int MYWIDTH=600;
    public static final int MYHEIGHT=200;
}
class MyPanel extends JPanel{
    public MyPanel(){
        JButton redButton=new JButton("RED");
        JButton greenButton=new JButton("GREEN");
        JButton blueButton=new JButton("BLUE");
        add(redButton);
        add(greenButton);
        add(blueButton);
        ColorAction redAction=new ColorAction(Color.RED);
        ColorAction greenAction=new ColorAction(Color.GREEN);
        ColorAction blueAction=new ColorAction(Color.BLUE);
        redButton.addActionListener(redAction);
        greenButton.addActionListener(greenAction);
        blueButton.addActionListener(blueAction);
    }

    public void paintComponent(Graphics g){
        super.paintComponents(g);
        Graphics2D g2=(Graphics2D)g;
        Font f=new Font("黑体",Font.BOLD,36);
        g2.setFont(f);
        g2.drawString("也能往这面板上加点东西啊!!",M_X,M_Y);
    }

    private class ColorAction implements ActionListener{
        public ColorAction(Color c){

        fontColor=c;
        }
        public void actionPerformed(ActionEvent event){
        setForeground(fontColor);


       }
        private Color fontColor;

            }





    public static final int M_X=75;
    public static final int M_Y=100;
}

• 
• 描述: 紅色
• 大小: 21.6 KB

• 
• 描述: 綠色
• 大小: 19.4 KB

• 
• 描述: 藍色
• 大小: 21.2 KB

• 查看图片附件

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为什么这个文件用JAVAC和JAVA可以运行,但 ... | 破解vigenere密码算法C++版.....

• 2007-09-19 15:04
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