stat.java

java应用程序 这个是自己第一次写的东西 还是初学

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

/**
 *
 * @author Administrator
 */
public class Stat  extends JDialog{
    public Stat(StuFrame sf){
        super(sf,"成绩分布统计对话框",true);
        setSize(400,300);
        owner = sf;
        a = Math.round(owner.statArr[0]*3.6f);
        b = Math.round(owner.statArr[1]*3.6f);
        c = Math.round(owner.statArr[2]*3.6f);
        d = Math.round(owner.statArr[3]*3.6f);
        setContentPane(new StatPanel());
    }
    class   StatPanel extends  JPanel{
        public  void    paintComponent(Graphics g){
            super.paintComponents(g);
            g.setColor(Color.YELLOW);
            g.fillArc(x, y, w, w, 0, a);
            g.fillRect(190, 40, 10, 10);
            g.setColor(Color.GREEN);
            g.fillArc(x, y, w, w, a, b);
            g.fillRect(190, 90, 10, 10);
            g.setColor(Color.BLUE);
            g.fillArc(x, y, w, w, a+b, c); 
            g.fillRect(190, 140, 10, 10);
            g.setColor(Color.RED);
            g.fillArc(x, y, w, w, a+b+c, d);
            g.fillRect(190, 190, 10, 10);
            g.setColor(Color.BLACK);
            g.drawString("优秀占"+Math.round(owner.statArr[0]*100)/100.0+"%", 200,50);
            g.drawString("良好占"+Math.round(owner.statArr[1]*100)/100.0+"%", 200,100);
            g.drawString("中等占"+Math.round(owner.statArr[2]*100)/100.0+"%", 200,150);
            g.drawString("不及格占"+Math.round(owner.statArr[2]*100)/100.0+"%", 200,200);
        }
    }
            
int a,b,c,d;
int x = 20;
int y = 50;
int w = 160;
StuFrame    owner;
}