50c1eb86ab50001d1dc6bad43998f314

学生管理系统.对学生信息管理的一个应用软件！

import java.awt.*;

import javax.swing.*;

import java.awt.event.*;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
class markMess2 extends JFrame implements ActionListener
{   Button button1,button3,button4;
    TextField text1,text2,text3;
    Label label1,label2,label3;
    TextArea text;
    markMess2(String s)
    {
    	super(s);
    	setLayout(new FlowLayout());
    	text=new TextArea(10,33);
 	    button1=new Button("修改");
        //button2=new Button("确定");
        button3=new Button("添加");
        button4=new Button("删除");
        label1 =new Label("学号");
        add(label1);
        label2 =new Label("课程名");
        add(label2);
        label3 =new Label("分数");
     
        add(label3);
        add(text);
        add(button1);
        //add(button2);
        add(button3);
        add(button4);
        button1.addActionListener(this);
       // button2.addActionListener(this);
        button3.addActionListener(this);
        button4.addActionListener(this);
      
        this.setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
        setBounds(120,120,300,300);
        setVisible(true);
  	    validate();
    }
    public void actionPerformed(ActionEvent e)
    {
 	   if(e.getSource()==button1){
 		  Connection con;
		   Statement sql;
		   ResultSet rs;
  			try{
  				Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
  			}catch(ClassNotFoundException k){
  				System.out.println(""+k);
  			}
  			try{
  				con=DriverManager.getConnection("jdbc:odbc:sun","","");
  				sql=con.createStatement();
  				String name,key,newkey,delstr,recode;
  				delstr="DELETE FROM login WHERE name = '" + name+ "'";
  				System.out.println(delstr);
  				sql.executeUpdate(delstr);
  				con.close();
  			}catch(SQLException ee){
  				System.out.print(ee);
  			}
    }
	
}
/*public class MmessageManage
{  public static void main(String args[])
{  markMess2 win=new markMess2("成绩管理") ;
 }
}*/