addstudent.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.*;

public class AddStudent extends JFrame implements ActionListener
{
        JLabel jlGrade,jlSpeciality,jlClass,jlCount;
        JTextField jtGrade,jtSpeciality,jtClass,jtCount;
        JButton jbCancel,jbAddStudent;

    public static void main(String[] args)
    {

        AddStudent frame=new AddStudent();
        frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
        frame.setTitle("输入学生信息：");
        frame.setSize(350,130);
        frame.setLocation(450,300);
        frame.setVisible(true);
    }
     public AddStudent()
     {   

        jlGrade=new JLabel("        年级");
        jlSpeciality=new JLabel("          专业");
        jlClass=new JLabel("        班级");
        jlCount=new JLabel("          人数");
        
        jtGrade=new JTextField("");
        jtSpeciality=new JTextField("");
        jtClass=new JTextField("");
        jtCount=new JTextField("");
        jbAddStudent=new JButton("增加姓名和学号");
        jbCancel=new JButton("   取消   ");
        
        JPanel jpJButton=new JPanel();
        JPanel jpLabel=new JPanel();
        jpLabel.setLayout(new GridLayout(0,4));
        jpLabel.add(jlGrade); 
        jpLabel.add(jtGrade);
        jpLabel.add(jlSpeciality); 
        jpLabel.add(jtSpeciality);
        jpLabel.add(jlClass);
        jpLabel.add(jtClass);
        jpLabel.add(jlCount); 
        jpLabel.add(jtCount);
        jpJButton.add(jbAddStudent);
        jpJButton.add(jbCancel);
        jbAddStudent.addActionListener(this);
        jbCancel.addActionListener(this);
        add(jpLabel,BorderLayout.NORTH);
        getContentPane().add(jpJButton,BorderLayout.SOUTH);
   
     }
     public void actionPerformed(ActionEvent e)
     {
        if(e.getSource()==jbAddStudent)
        {
          String grade = null,speciality = null,Class = null,count = null;
          grade =jtGrade.getText();
          speciality=jtSpeciality.getText();
          Class =jtClass.getText();
          count =jtCount.getText();

          new AddIdAndName(grade,speciality ,Class,count);
         
      }
     else if(e.getSource()==jbCancel)
     {
        this.setVisible(false);
    }
     }

  }