caky.java

学生成绩管理系统：能输入学科

package 学生考试成绩分析程序;

import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import java.io.*;
import java.util.*;

public class Caky extends JFrame implements ActionListener{
    
   static int[] count={0,0,0,0,0};
   static int  k,sum=0,icount=0,m;
   JButton jbExit;
   static String[] line;
   static String[] class1;
    static String[] name;
    static String[] score;
    
    public Caky(String Class,String course){
              try{
           BufferedReader input =new BufferedReader(new FileReader("score.txt"));
           String  L=input.readLine();
           double sc=0;
            String s3,s4;
            
           StringTokenizer tokenizer=new StringTokenizer(L,"*");
            m=tokenizer.countTokens();
            line=new String[m];
            class1=new String[m/7];
            name=new String[m/7];
            score=new String[m/7];
          
           for(int i=0;tokenizer.hasMoreTokens();i++)
           {
               line[i]=tokenizer.nextToken();
           }
            for(int j=0,n=1;j<m;j++,n++)
                     {
                         if(n==1){
                            
                             class1[icount]=line[j];
                             name[icount]=line[j+1];
                             score[icount]=line[j+4];
                             icount++; 
                         }
                         if(n==7){
                             n=0;
                         }
                     }
         
          StringTokenizer scanner3=new StringTokenizer(Class);
          StringTokenizer scanner4=new StringTokenizer(course);
          s3=scanner3.nextToken();
          s4=scanner4.nextToken();  
          
           for(int n=0;n<m/7;n++)
          {
              if((class1[n].equals(s3))&&(name[n].equals(s4))){
               sc=Double.parseDouble(score[n]);
               if(sc<=59&&sc>=0)
                   count[0]++;
               if(sc<=69&&sc>=60)
                   count[1]++;
               if(sc<=79&&sc>=70)
                   count[2]++;
               if(sc<=89&&sc>=80)
                   count[3]++;
               if(sc<=100&&sc>=90)
                   count[4]++;
               sum++;
              }   
           }
          input.close();
      }           
   
          
 
      
      catch(Exception es){
          JOptionPane.showMessageDialog(null, "分析失败");
      }
      jbExit=new JButton("EXIT");
       JPanel jpExit=new JPanel();
       jpExit.add(jbExit);
       jbExit.addActionListener(this);
       getContentPane().add(new RectPanel(),BorderLayout.CENTER);
       getContentPane().add(jpExit,BorderLayout.SOUTH);
        this.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
        this.setTitle("饼图分析");
        this.setLocation(400,300);
        this.setSize(600,380);
        this.setVisible(true);
    }
    class RectPanel extends JPanel{
    protected void paintComponent(Graphics g){

        double m=(1-count[0]/sum-count[1]/sum-count[2]/sum-count[3]/sum-count[4]/sum)*1000/5000.0;
        super.paintComponent(g);
        g.setColor(Color.BLACK);
        g.drawRect(getWidth()/10,getHeight()/8,getWidth()/8*7,getHeight()/4*3); 
        g.setColor(Color.GREEN);
        g.fillArc((getWidth()/10+getWidth()/7*6)/5*2, (getHeight()/8+getHeight()/4*3)/3, getHeight()/4*3/2,  getHeight()/4*3/2, 0, (int)(count[0]+m)*360/sum);
         if
                 ((getWidth()/10+getWidth()/7*6)/5*2+ getHeight()/4*3/2/2+80+(int)(Math.cos( 360*count[0]/sum/2*3.14/180)*getHeight()/4*3/2/2)<(getWidth()/10+getWidth()/7*6)/5*2+getHeight()/4*3/2)
        g.drawString("<60分\n "+1000*count[0]/sum/10.0+"%", (getWidth()/10+getWidth()/7*6)/5*2-80+getHeight()/4*3/2/2+(int)(Math.cos( 360*count[0]/sum/2*3.14/180)*getHeight()/4*3/2/2), 
                ( (getHeight()/8+getHeight()/4*3)/3+getHeight()/4*3/2/2)-(int)(Math.sin( 360*count[0]/sum/2*3.14/180)*getHeight()/4*3/2/2));
         else
              g.drawString("<60分\n "+1000*count[0]/sum/10.0+"%", (getWidth()/10+getWidth()/7*6)/5*2+5+getHeight()/4*3/2/2+5+(int)(Math.cos( 360*count[0]/sum/2*3.14/180)*getHeight()/4*3/2/2), 
                ( (getHeight()/8+getHeight()/4*3)/3+getHeight()/4*3/2/2)-(int)(Math.sin( 360*count[0]/sum/2*3.14/180)*getHeight()/4*3/2/2));
        g.setColor(Color.BLUE);
        g.fillArc((getWidth()/10+getWidth()/7*6)/5*2, (getHeight()/8+getHeight()/4*3)/3, getHeight()/4*3/2,  getHeight()/4*3/2, (int)(count[0]+m)*360/sum, (int)(count[1]+m)*360/sum);
         if
                 ((getWidth()/10+getWidth()/7*6)/5*2+ getHeight()/4*3/2/2+80+(int)(Math.cos( (360*count[0]/sum+360*count[1]/sum/2)*3.14/180)*getHeight()/4*3/2/2)<(getWidth()/10+getWidth()/7*6)/5*2+getHeight()/4*3/2)
        g.drawString("60-69分\n "+1000*count[1]/sum/10.0+"%", (getWidth()/10+getWidth()/7*6)/5*2+ getHeight()/4*3/2/2-80+(int)(Math.cos( (360*count[0]/sum+360*count[1]/sum/2)*3.14/180)*getHeight()/4*3/2/2), 
                ( (getHeight()/8+getHeight()/4*3)/3+getHeight()/4*3/2/2-20)-(int)(Math.sin( (360*count[0]/sum+360*count[1]/sum/2)*3.14/180)*getHeight()/4*3/2/2));
         else
             g.drawString("60-69分\n "+1000*count[1]/sum/10.0+"%", (getWidth()/10+getWidth()/7*6)/5*2+ getHeight()/4*3/2/2+5+(int)(Math.cos( (360*count[0]/sum+360*count[1]/sum/2)*3.14/180)*getHeight()/4*3/2/2), 
                ( (getHeight()/8+getHeight()/4*3)/3+getHeight()/4*3/2/2)-(int)(Math.sin( (360*count[0]/sum+360*count[1]/sum/2)*3.14/180)*getHeight()/4*3/2/2));
        g.setColor(Color.RED);
        g.fillArc((getWidth()/10+getWidth()/7*6)/5*2, (getHeight()/8+getHeight()/4*3)/3, getHeight()/4*3/2,  getHeight()/4*3/2, (int)(count[0]+m)*360/sum+(int)(count[1]+m)*360/sum, 360*count[2]/sum);
        if
                ((getWidth()/10+getWidth()/7*6)/5*2+ getHeight()/4*3/2/2+80+(int)(Math.cos( (360*count[0]/sum+360*count[1]/sum+360*count[2]/sum/2)*3.14/180)*getHeight()/4*3/2/2)<(getWidth()/10+getWidth()/7*6)/5*2+getHeight()/4*3/2)
        g.drawString("70-79分\n "+1000*count[2]/sum/10.0+"%", (getWidth()/10+getWidth()/7*6)/5*2+ getHeight()/4*3/2/2-80+(int)(Math.cos( (360*count[0]/sum+360*count[1]/sum+360*count[2]/sum/2)*3.14/180)*getHeight()/4*3/2/2), 
                ( (getHeight()/8+getHeight()/4*3)/3+getHeight()/4*3/2/2)-(int)(Math.sin( (360*count[0]/sum+360*count[1]/sum+360*count[2]/sum/2)*3.14/180)*getHeight()/4*3/2/2));
        else
            g.drawString("70-79分\n "+1000*count[2]/sum/10.0+"%", (getWidth()/10+getWidth()/7*6)/5*2+ getHeight()/4*3/2/2+5+(int)(Math.cos( (360*count[0]/sum+360*count[1]/sum+360*count[2]/sum/2)*3.14/180)*getHeight()/4*3/2/2), 
                ( (getHeight()/8+getHeight()/4*3)/3+getHeight()/4*3/2/2)-(int)(Math.sin( (360*count[0]/sum+360*count[1]/sum+360*count[2]/sum/2)*3.14/180)*getHeight()/4*3/2/2));
        g.setColor(Color.MAGENTA);
        g.fillArc((getWidth()/10+getWidth()/7*6)/5*2, (getHeight()/8+getHeight()/4*3)/3, getHeight()/4*3/2,  getHeight()/4*3/2,(int)(count[0]+m)*360/sum+((int)(count[1]+m)*360/sum+(int)(count[2]+m)*360/sum), 360*count[3]/sum);
         if
                ((getWidth()/10+getWidth()/7*6)/5*2+ getHeight()/4*3/2/2+80+(int)(Math.cos( (360*count[0]/sum+360*count[1]/sum+360*count[2]/sum+360*count[3]/sum/2)*3.14/180)*getHeight()/4*3/2/2)<(getWidth()/10+getWidth()/7*6)/5*2+getHeight()/4*3/2)
        g.drawString("80-89分\n "+1000*count[3]/sum/10.0+"%", (getWidth()/10+getWidth()/7*6)/5*2+ getHeight()/4*3/2/2-90+(int)(Math.cos( (360*count[0]/sum+360*count[1]/sum+360*count[2]/sum+360*count[3]/sum/2)*3.14/180)*getHeight()/4*3/2/2), 
                ( (getHeight()/8+getHeight()/4*3)/3+getHeight()/4*3/2/2)-(int)(Math.sin( (360*count[0]/sum+360*count[1]/sum+360*count[2]/sum+360*count[3]/sum/2)*3.14/180)*getHeight()/4*3/2/2));
         else
             g.drawString("80-89分\n "+1000*count[3]/sum/10.0+"%", (getWidth()/10+getWidth()/7*6)/5*2+ getHeight()/4*3/2/2+5+(int)(Math.cos( (360*count[0]/sum+360*count[1]/sum+360*count[2]/sum+360*count[3]/sum/2)*3.14/180)*getHeight()/4*3/2/2), 
                ( (getHeight()/8+getHeight()/4*3)/3+getHeight()/4*3/2/2+12)-(int)(Math.sin( (360*count[0]/sum+360*count[1]/sum+360*count[2]/sum+360*count[3]/sum/2)*3.14/180)*getHeight()/4*3/2/2));
         g.setColor(Color.BLACK);
        g.fillArc((getWidth()/10+getWidth()/7*6)/5*2, (getHeight()/8+getHeight()/4*3)/3, getHeight()/4*3/2,  getHeight()/4*3/2,(int)(count[0]+m)*360/sum+(int)(count[1]+m)*360/sum+(int)(count[2]+m)*360/sum+(int)(count[3]+m)*360/sum, (int)(count[4]+m)*360/sum);
        if
                ((getWidth()/10+getWidth()/7*6)/5*2+ getHeight()/4*3/2/2+80+(int)(Math.cos( (360*count[0]/sum+360*count[1]/sum+360*count[2]/sum+360*count[3]/sum+360*count[4]/sum/2)*3.14/180)*getHeight()/4*3/2/2)<(getWidth()/10+getWidth()/7*6)/5*2+getHeight()/4*3/2)
        g.drawString(">=90分\n "+1000*count[4]/sum/10.0+"%", (getWidth()/10+getWidth()/7*6)/5*2-80+ getHeight()/4*3/2/2-90+(int)(Math.cos( (360*count[0]/sum+360*count[1]/sum+360*count[2]/sum+360*count[3]/sum+360*count[4]/sum/2)*3.14/180)*getHeight()/4*3/2/2), 
                ( (getHeight()/8+getHeight()/4*3)/3+getHeight()/4*3/2/2)-(int)(Math.sin( (360*count[0]/sum+360*count[1]/sum+360*count[2]/sum+360*count[3]/sum+360*count[4]/sum/2)*3.14/180)*getHeight()/4*3/2/2));
        else
            g.drawString(">=90分\n "+1000*count[4]/sum/10.0+"%", (getWidth()/10+getWidth()/7*6)/5*2+ getHeight()/4*3/2/2+10+(int)(Math.cos( (360*count[0]/sum+360*count[1]/sum+360*count[2]/sum+360*count[3]/sum+360*count[4]/sum/2)*3.14/180)*getHeight()/4*3/2/2), 
                ( (getHeight()/8+getHeight()/4*3)/3+getHeight()/4*3/2/2)-(int)(Math.sin( (360*count[0]/sum+360*count[1]/sum+360*count[2]/sum+360*count[3]/sum+360*count[4]/sum/2)*3.14/180)*getHeight()/4*3/2/2));
        g.setColor(Color.BLACK);
        g.drawString("成绩百分比", getWidth()/9*4, getHeight()/5);
        g.setColor(Color.GREEN);
        g.drawString("<60分", getWidth()/6*5, getHeight()/3);
        g.setColor(Color.BLUE);
        g.drawString("60-69分", getWidth()/6*5, getHeight()/15*6);
        g.setColor(Color.RED);
        g.drawString("70-79分", getWidth()/6*5, getHeight()/15*7);
        g.setColor(Color.MAGENTA);
        g.drawString("80-89分", getWidth()/6*5, getHeight()/15*8);
        g.setColor(Color.BLACK);
        g.drawString(">=90分", getWidth()/6*5, getHeight()/15*9);
        
        g.setColor(Color.LIGHT_GRAY);
        g.drawRect(getWidth()/4*3, getHeight()/15*4, getWidth()/5, getHeight()/26*10);
        g.setColor(Color.GREEN);
        g.fillRect(getWidth()/9*7, getHeight()/10*3,getHeight()/20,getHeight()/20 );
        g.setColor(Color.BLUE);
        g.fillRect(getWidth()/9*7, getHeight()/10*3+getHeight()/15,getHeight()/20,getHeight()/20 );
        g.setColor(Color.RED);
        g.fillRect(getWidth()/9*7, getHeight()/10*3+getHeight()/15*2,getHeight()/20,getHeight()/20 );
        g.setColor(Color.MAGENTA);
        g.fillRect(getWidth()/9*7, getHeight()/10*3+getHeight()/15*3,getHeight()/20,getHeight()/20 );
        g.setColor(Color.BLACK);
        g.fillRect(getWidth()/9*7, getHeight()/10*3+getHeight()/15*4,getHeight()/20,getHeight()/20 );
         
    }
}
public void actionPerformed(ActionEvent e)
    {
        if(e.getSource()==jbExit){
         k=0;
         sum=0;
         icount=0;
         m=0;
         for(int k=0;k<5;k++)
             count[k]=0;
            this.setVisible(false);
        }
    }
}