scorecircleanasysjframe.java

用Java做的一个学生考试分析程序

/*
 * ScoreCircleAnasys.java
 *
 * Created on 2007年12月16日, 下午2:39
 *
 * To change this template, choose Tools | Template Manager
 * and open the template in the editor.
 */

package 考试成绩分析程序;
import com.sun.org.apache.xerces.internal.impl.xpath.regex.Match;
import javax.swing.*;
import java.awt.*;
import java.util.*;
/*
 *
 * @author drawen
 */
public class ScoreCircleAnasysJFrame extends JFrame{
    private ScoreMenu scoreMenu;
    /** Creates a new instance of ScoreCircleAnasys */
    public ScoreCircleAnasysJFrame(ScoreMenu scoreMenu) {
        this.setTitle("成绩单饼状图");
        this.scoreMenu=scoreMenu;
        JPanel right=new JPanel(new GridLayout(3,1));
        right.add(new JLabel(""));
        right.add(new TipJPanel());
        right.add(new JLabel(""));
        add(right,BorderLayout.EAST);
        add(new CircleTypeJPanel());
    }
    class CircleTypeJPanel extends JPanel{
        CircleTypeJPanel(){
            this.repaint();
        }
 //           int[] colors={Color.BLUE,Color.PINK,Color.YELLOW,Color.GREEN,Color.RED};        
        protected void paintComponent(Graphics g){
            super.paintComponent(g);
            int centerX=this.getWidth()/2;
            int centerY=this.getHeight()/2;
            int radius=Math.min(this.getHeight(),this.getWidth())/4*3;
            int x=centerX-radius/2;
            int y=centerY-radius/2;
            int []score=scoreMenu.getAnasisOfScore();
            int number=scoreMenu.getNumberOfAttendTestStudent();
            int[] degree=new int[5];
            for(int i=0;i<5;i++){
                degree[i]=(int)Math.toDegrees(2*Math.PI*score[i]/number);
            }
            g.setColor(Color.BLUE);
            g.fillArc(x,y,radius,radius,0,degree[0]);
            g.setColor(Color.PINK);
            g.fillArc(x,y,radius,radius,degree[0],degree[1]);
            g.setColor(Color.YELLOW);
            g.fillArc(x,y,radius,radius,degree[0]+degree[1],degree[2]);
            g.setColor(Color.GREEN);
            g.fillArc(x,y,radius,radius,degree[0]+degree[1]+degree[2],degree[3]);
            g.setColor(Color.RED);
            g.fillArc(x,y,radius,radius,degree[0]+degree[1]+degree[2]+degree[3],degree[4]);
        }
    }
    class TipJPanel extends JPanel{
        TipJPanel(){
            setLayout(new GridLayout(5,3));
            int[] score=scoreMenu.getAnasisOfScore();
            int number=scoreMenu.getNumberOfAttendTestStudent();
            Color[] colors={Color.BLUE,Color.PINK,Color.YELLOW,Color.GREEN,Color.RED};        
            String[] text={"<60分","60-69分","70-79分","80-89分",">=90分"};
            JButton button;
            for(int i=0;i<5;i++){
                button=new JButton("  ");
                button.setEnabled(false);
                button.setBackground(colors[i]);
                add(button);
                add(new JLabel(text[i]));
                add(new JLabel((int)(score[i]*100.0/number)+"%"));
            }
        }
    }
}