savescore.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.StringTokenizer;

public class SaveScore extends JFrame implements ActionListener,java.io.Serializable{
   static String Class=null,course=null,data=null,count=null,number=null;
    JButton addScore;
    JTextField jtClass=new JTextField("");
    JTextField jtCourse=new JTextField("");
          JComboBox jc;
      String[] s;
      String[] c;
      static  int ccount=0;
      int m;
              JComboBox jc2;
        String[] s2;
        String[] c2;
        static  int count2=0;
        int m2;
        Object[] O2;

    public SaveScore() 
    {

        JLabel jlClass=new JLabel("                    班级");
        JLabel jlCourse=new JLabel("                      课程");
        addScore=new JButton("增加成绩");
        try{
               BufferedReader output=new   BufferedReader(new FileReader("course.txt")); 
               String line=output.readLine();
               StringTokenizer ss=new StringTokenizer(line,"*");
                m=ss.countTokens();
               
               s=new String[m];
               c=new String[m/4];
              
               for(int i=0;ss.hasMoreTokens();i++){
                   s[i]=ss.nextToken();
               }
               for(int j=0,k=1;j<m;j++,k++){
                   if(k==2){
                      
                       c[ccount]=s[j];   
                       ccount++;
                       
                   }
                   if(k==4)
                       k=0;
                }
                 
               Object[] O=new Object[m/4];
               for(int i=0;i<m/4;i++)
                   O[i]=c[i];
               jc=new JComboBox(O);
               output.close();
               ccount=0;
          }
         catch(Exception e)
         {
             JOptionPane.showMessageDialog(null, "增加失败");
         }
        
        try{
               BufferedReader output2=new   BufferedReader(new FileReader("student.txt")); 
               String line2=output2.readLine();
               StringTokenizer ss2=new StringTokenizer(line2,"*");
                m2=ss2.countTokens();
               
               s2=new String[m2];
               c2=new String[m2];
              
               for(int i=0;ss2.hasMoreTokens();i++){
                   s2[i]=ss2.nextToken();
               }
               c2[0]=s2[0]+s2[1]+s2[2];
               for(int j=0,k=1;j<m2;j++,k++){
                   if(k==3){
                      if(!c2[count2].equals(s2[j-2]+s2[j-1]+s2[j])){
                       c2[++count2]=s2[j-2]+s2[j-1]+s2[j];   
                      }
                   }
                   if(k==6)
                       k=0;
                }
               O2=new Object[++count2];
               for(int i=0;i<count2;i++){
                   O2[i]=c2[i];
               }
               jc2=new JComboBox(O2);
               count2=0;
               output2.close();
          }
         catch(Exception eg)
         {
             JOptionPane.showMessageDialog(null, "增加失败");
         }
        JPanel jpanel=new JPanel();
        JPanel jpanel2=new JPanel();
        jpanel.setLayout(new GridLayout(1,4));
        jpanel.add(jlClass);
        jpanel.add(jc2);
        jpanel.add(jlCourse);
        jpanel.add(jc);
        jpanel2.add(addScore);
        addScore.addActionListener(this);
        getContentPane().add(jpanel,BorderLayout.CENTER);
        getContentPane().add(jpanel2,BorderLayout.SOUTH);
       
      
    }
       public void actionPerformed(ActionEvent e)
     {
        if(e.getSource()==addScore)
        {
             Class=jc2.getSelectedItem().toString();
            course=jc.getSelectedItem().toString();
            
            new AddScore(Class,course);
         
      }
       }


}