简单实现Java版学生管理系统

本文实例为大家分享了Java实现学生管理系统的具体代码，供大家参考，具体内容如下

package BookDemo_1;

import javax.swing.*;

import java.awt.*;
import java.awt.event.*;

public class Test {
 public static void main(String[] args) {
 StudentSys stuSys=new StudentSys("学生管理系统");
 stuSys.initWin();
 }
}
class StudentSys extends JFrame{

 private JPanel p1,p2,p3,combop;
 private JTabbedPane tab;
 private Container container;
 private JButton b1,b2;
 private Listener listener;
 private Label nameLabel;
 private Label gradeLabel;
 private Label showLabel;
 private JTextField textName;
 private JTextField textGrade;
 private TextArea showGradeArea;
 /*
 * 查找
 * */
 private Label searchLabel;
 private JTextField searchText;
 private JButton sBut;
 private JTextField resultText;
 private String[] name;
 private String[] grade;

 /*
 * 排序
 * */
 private TextArea showTextArea;
 private JButton sortBut;
 private int countNum=0;
 private JButton clearBut;
 public StudentSys(String str){
 super(str);

 this.name=new String[100];
 this.grade=new String[100];
 listener = new Listener();
 tab = new JTabbedPane(JTabbedPane.TOP);
 //容器
 container = this.getLayeredPane();
 //对象化面板
 combop = new JPanel();
 p1 = new JPanel();
 p2 = new JPanel();
 p3 = new JPanel();

 b1 =new JButton("确认添加");
 b2 =new JButton("撤回添加");
 nameLabel =new Label("姓名");
 gradeLabel =new Label("成绩");

 showLabel=new Label("当前记录为零！    ");

 textName =new JTextField(15);
 textGrade =new JTextField(15);
 showGradeArea=new TextArea();

 /*
 * 查找
 * */
 searchLabel=new Label("请输入姓名：");
 searchText=new JTextField(15);
 sBut=new JButton("确认查找");
 resultText=new JTextField(15);
 /*
 * 排序
 * */
 showTextArea=new TextArea();
 sortBut=new JButton("成绩排序");
 clearBut=new JButton("清空数据");
 }
 public void initWin(){
 this.setBounds(300, 300, 500, 400);
 this.addWindowListener(new WindowAdapter(){
  public void windowClosing(WindowEvent e) {
  super.windowClosing(e);
  System.exit(0);
  }});
  layoutWin();
  this.setVisible(true);
 }
 private void layoutWin(){

 tab.add(p1,"成绩输入");
 tab.add(p2,"成绩查询");
 tab.add(p3,"成绩排序");
 combop.add(new JLabel("学生信息管理系统"));
 container.setLayout(new BorderLayout());
 container.add(combop,BorderLayout.NORTH);
 container.add(tab,BorderLayout.CENTER);

 Container con1=new Container();
 con1.setLayout(new FlowLayout());
 con1.add(nameLabel);
 con1.add(textName);

 con1.add(gradeLabel);
 con1.add(textGrade);
 p1.add(con1,BorderLayout.NORTH);
 p1.add(con1);
 p1.add(showGradeArea);

 Container con2=new Container();
 con2.setLayout(new FlowLayout());
 con2.add(b1);
 con2.add(b2);
 con2.add(showLabel);
 p1.add(con2);
 b1.addActionListener(listener);
 b2.addActionListener(listener);
 /*
 * 查找布局
 * */

 Container con3=new Container();
 con3.setLayout(new FlowLayout());
 con3.add(searchLabel);
 con3.add(searchText);
 con3.add(sBut);
 p2.add(con3,BorderLayout.NORTH);
 sBut.addActionListener(listener);
 p2.add(resultText);
 /*
 * 排序布局
 * */
 p3.add(showTextArea);
 p3.add(sortBut);
 p3.add(clearBut);
 sortBut.addActionListener(listener);
 clearBut.addActionListener(listener);
 }
 /*
 * java内部类实现ActionListener接口
 * */
 class Listener implements ActionListener{
 @Override
  public void actionPerformed(ActionEvent e) {

  if(e.getSource()==b1){

  if((textName.getText().equals(""))||(textGrade.getText().equals(""))){
   showLabel.setText("添加失败(姓名,成绩不能有空)！");
  }
  else{
   name[countNum]=textName.getText();
   grade[countNum]=textGrade.getText();
   countNum++;
   String area="添加成功,当前有"+countNum+"条记录";
   showLabel.setText(area);
   sortMess(false);
   textName.setText("");
   textGrade.setText("");
  }

  }
  if(e.getSource()==b2){
  if(countNum>0){
   countNum--;
   String area="撤回成功,当前有"+countNum+"条记录";
   showLabel.setText(area);
   sortMess(false);
  }
  }
  if(e.getSource()==sBut){
  if(!searchText.getText().equals("")){
   searchMess(searchText.getText());
  }
  }
  if(e.getSource()==sortBut){
  sortMess(true);
  }
  if(e.getSource()==clearBut){
  if(!showTextArea.getText().equals("")){
   showTextArea.setText("");
   }
  }
 }

 public void sortMess(boolean sign) {
  // TODO Auto-generated method stub
  if(sign){
  for(int i=0;i<countNum;i++){
   for(int j=i+1;j<countNum;j++){
   if(Integer.parseInt(grade[i])<Integer.parseInt(grade[j])){
    String s1,s2;
    s1=name[i];
    s2=grade[i];

    name[i]=name[j];
    grade[i]=grade[j];

    name[j]=s1;
    grade[j]=s2;
   }
   }
  }
  }else{

  if(!showGradeArea.getText().equals("")){
   showGradeArea.setText("");
  }
  }
  for(int i=0;i<countNum;i++){
  String content="姓名:"+name[i]+"\t"+"成绩"+grade[i];
  if(sign)showTextArea.append(content+"\n");
  else showGradeArea.append(content+"\n");
  }
 }

 public void searchMess(String n) {
  // TODO Auto-generated method stub

  for(int i=0;i<countNum;i++){
  if(name[i].equals(n)){
   String content="姓名:"+name[i]+","+"成绩"+grade[i];
   resultText.setText(content);
   return;
  }
  }
  resultText.setText("未找到该学生!");
 }
 }
}

 以上就是本文的全部内容，希望对大家学习Java程序设计有所帮助。