简单的JAVA学生管理系统代码···

lListStudent students = new ArrayListStudent();

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BufferedReader br = new BufferedReader(new FileReader("D:\student.txt"));

String tmpStr = br.readLine();

while(tmpStr != null){

int firstIndex = tmpStr.indexOf(" ");

int secondIndex = tmpStr.indexOf(" ",firstIndex + 1);

int thirdIndex = tmpStr.indexOf(" ", secondIndex + 1);

int forthIndex = tmpStr.indexOf(" ", thirdIndex + 1);

Integer stuId = Integer.parseInt(tmpStr.substring(0,firstIndex));

String stuName = tmpStr.substring(firstIndex + 1,secondIndex);

Integer stuYW = Integer.parseInt(tmpStr.substring(secondIndex + 1,thirdIndex));

Integer stuSX = Integer.parseInt(tmpStr.substring(thirdIndex + 1,forthIndex));

Integer stuYY = Integer.parseInt(tmpStr.substring(forthIndex + 1));

Student student = new Student();

student.setStuId(stuId);

student.setStuName(stuName);

student.setStuYW(stuYW);

student.setStuSX(stuSX);

student.setStuYY(stuYY);

students.add(student);

tmpStr.readLine();

}

//创建一个学生实体类 封装stuId stuName stuYW stuSx stuYY 这5个属性。。。

//已经帮你把数据拆分出来 并以Student 对象的形式放入集合中了 接下来 给分吧 哇咔咔

怎么用java做一个简单的学生管理系统？

用java写的话，可以用List来实现学生管理系统：\x0d\x0a首先，管理系统是针对学生对象的，所以我们先把学生对象就写出来：\x0d\x0apackage bean;\x0d\x0apublic class Student {\x0d\x0a String name;\x0d\x0a String studentId;\x0d\x0a String sex;\x0d\x0a int grade;\x0d\x0a public Student(String name,String studentId,String sex,int grade){\x0d\x0a this.name= name;\x0d\x0a this.studentId= studentId;\x0d\x0a this.sex = sex;\x0d\x0a this.grade = grade; \x0d\x0a }\x0d\x0a public int getGrade(){\x0d\x0a return grade;\x0d\x0a }\x0d\x0a public String getName(){\x0d\x0a return name;\x0d\x0a }\x0d\x0a public String getSex(){\x0d\x0a return sex;\x0d\x0a }\x0d\x0a public void setGrade(int g){\x0d\x0a this.grade = g;\x0d\x0a }\x0d\x0a public String getStudentId(){\x0d\x0a return studentId;\x0d\x0a }\x0d\x0a}\x0d\x0a这里面定义了一些得到当前学生对象数据的一些get方法，和成绩修改的set方法，代码很简单，就不做详细的解答。\x0d\x0a就下来就是我们的正文了。\x0d\x0a虽然我们暂时不用swing来做界面，但是总得要看的过去吧，所以，先做了一个比较简单的界面：\x0d\x0a System.out.println("***************");\x0d\x0a System.out.println("*欢迎来到学生管理系统 *");\x0d\x0a System.out.println("*1：增加学生 *");\x0d\x0a System.out.println("*2：删除学生 *");\x0d\x0a System.out.println("*3：修改成绩 *");\x0d\x0a System.out.println("*4：查询成绩 *");\x0d\x0a System.out.println("***************");\x0d\x0a System.out.println("您想选择的操作是：");\x0d\x0a这里可以看到，我们的是用一个1234来选择项目，说以不得不讲一下Java如何获取到键盘所输入的数据---------Scanner ,要使用这个，首先需要import进来一个包：\x0d\x0a例如这里:\x0d\x0aimport java.util.*;\x0d\x0a之后的两行代码搞定输入：\x0d\x0aScanner sc = new Scanner(System.in);\x0d\x0a int choice = sc.nextInt();\x0d\x0a接下来就是各个功能的实现：\x0d\x0a\x0d\x0apackage test;\x0d\x0aimport java.util.*;\x0d\x0aimport bean.Student;\x0d\x0apublic class Manager {\x0d\x0a static List StudentList = new LinkedList();\x0d\x0a public static void main(String[] agrs){\x0d\x0a select(StudentList); \x0d\x0a }\x0d\x0a private static void select(List StudentList ){\x0d\x0a System.out.println("***************");\x0d\x0a System.out.println("*欢迎来到学生管理系统 *");\x0d\x0a System.out.println("*1：增加学生 *");\x0d\x0a System.out.println("*2：删除学生 *");\x0d\x0a System.out.println("*3：修改成绩 *");\x0d\x0a System.out.println("*4：查询成绩 *");\x0d\x0a System.out.println("***************");\x0d\x0a System.out.println("您想选择的操作是：");\x0d\x0a Scanner sc = new Scanner(System.in);\x0d\x0a int choice = sc.nextInt(); \x0d\x0a switch(choice){\x0d\x0a //增加学生\x0d\x0a case 1:\x0d\x0a System.out.print("请输入学生的姓名：");\x0d\x0a Scanner Sname = new Scanner(System.in);\x0d\x0a String name = Sname.nextLine();\x0d\x0a System.out.print("请输入学生的性别：");\x0d\x0a Scanner Ssex = new Scanner(System.in);\x0d\x0a String sex = Ssex.nextLine();\x0d\x0a System.out.print("请输入学生的学号：");\x0d\x0a Scanner SId = new Scanner(System.in);\x0d\x0a String studentId = SId.nextLine();\x0d\x0a System.out.print("请输入学生的成绩：");\x0d\x0a Scanner Sgrade = new Scanner(System.in);\x0d\x0a int grade = Sgrade.nextInt();\x0d\x0a StudentList.add(new Student(name,studentId,sex,grade));\x0d\x0a System.out.println("添加成功！！！！！");\x0d\x0a select(StudentList);\x0d\x0a break;\x0d\x0a //删除学生成绩\x0d\x0a case 2:\x0d\x0a System.out.print("请告诉我需要删除学生的学号：");\x0d\x0a Scanner Sid = new Scanner(System.in);\x0d\x0a String SstudentId = Sid.nextLine();\x0d\x0a boolean isfindDelete = false;\x0d\x0a for (int i = 0; i

回答于 2022-11-16

亲有java语言写的超市管理系统课程设计和源代码吗，能给我吗

package untitled5;

import java.io.*;

import java.net.*;

import java.sql.*;

import java.lang.*;

import javax.sql.*;

import java.awt.*;

import java.awt.event.*;

import javax.swing.*;

import com.borland.jbcl.layout.*;

public class delbook extends JFrame {

JPanel contentPane;

XYLayout xYLayout1 = new XYLayout();

JLabel jLabel1 = new JLabel();

JLabel jLabel2 = new JLabel();

JLabel jLabel3 = new JLabel();

JTextField jTextField1 = new JTextField();

JLabel jLabel4 = new JLabel();

JTextField jTextField2 = new JTextField();

JLabel jLabel5 = new JLabel();

JTextField jTextField3 = new JTextField();

JLabel jLabel6 = new JLabel();

JTextField jTextField4 = new JTextField();

JButton jButton1 = new JButton();

//Construct the frame

public delbook() {

enableEvents(AWTEvent.WINDOW_EVENT_MASK);

try {

jbInit();

}

catch(Exception e) {

e.printStackTrace();

}

}

//Component initialization

private void jbInit() throws Exception {

contentPane = (JPanel) this.getContentPane();

jLabel1.setFont(new java.awt.Font("SansSerif", 0, 25));

jLabel1.setForeground(Color.red);

jLabel1.setText("超市管理系统");

contentPane.setLayout(xYLayout1);

this.setSize(new Dimension(500,400));

this.setTitle("超市管理系统");

jLabel2.setFont(new java.awt.Font("SansSerif", 0, 30));

jLabel2.setText("业务单位信息");

jLabel3.setFont(new java.awt.Font("SansSerif", 0, 25));

jLabel3.setText("产品编号");

jTextField1.setText("");

jLabel4.setFont(new java.awt.Font("SansSerif", 0, 25));

jLabel4.setText("公司名称");

jTextField2.setText("");

jLabel5.setFont(new java.awt.Font("SansSerif", 0, 25));

jLabel5.setText("订单号码");

jTextField3.setText("");

jLabel6.setFont(new java.awt.Font("SansSerif", 0, 25));

jLabel6.setText("电 话");

jTextField4.setText("");

jButton1.setFont(new java.awt.Font("SansSerif", 0, 25));

jButton1.setText("提交");

jButton1.addActionListener(new delbook_jButton1_actionAdapter(this));

contentPane.add(jLabel1, new XYConstraints(179, 1, 153, 32));

contentPane.add(jLabel2, new XYConstraints(162, 33, -1, -1));

contentPane.add(jLabel3, new XYConstraints(83, 89, -1, -1));

contentPane.add(jTextField1, new XYConstraints(189, 88, 141, 36));

contentPane.add(jTextField2, new XYConstraints(189, 149, 142, 36));

contentPane.add(jLabel4, new XYConstraints(84, 148, -1, -1));

contentPane.add(jTextField3, new XYConstraints(188, 206, 143, 33));

contentPane.add(jLabel5, new XYConstraints(84, 204, -1, -1));

contentPane.add(jLabel6, new XYConstraints(84, 253, -1, -1));

contentPane.add(jTextField4, new XYConstraints(189, 260, 143, 36));

contentPane.add(jButton1, new XYConstraints(197, 318, -1, -1));

}

//Overridden so we can exit when window is closed

protected void processWindowEvent(WindowEvent e) {

super.processWindowEvent(e);

if (e.getID() == WindowEvent.WINDOW_CLOSING) {

System.exit(0);

}

}

void update() {

try {

//定义显示的字符串

String str1;

String str2;

String str3;

String str4;

str1 = jTextField1.getText();

str2 = jTextField2.getText();

str3 = jTextField3.getText();

str4 = jTextField4.getText();

//装载jdbc驱动程序

String driverName = "oracle.jdbc.OracleDriver";

Driver driver = (Driver) Class.forName(driverName).newInstance();

//连接数据库

Connection con = DriverManager.getConnection(

"jdbc:oracle:thin:@thsspc0791:1521:liuyong", "hr", "tongfang");

PreparedStatement pstmt = con.prepareStatement(

" insert Customer1('goodID','Name','PID','tel')values(?,?,?,?)");

pstmt.setString(1, str1);

pstmt.setString(2, str2);

pstmt.setString(1, str3);

pstmt.setString(4, str4);

ResultSet res = pstmt.executeQuery();

pstmt.close();

con.close();

}catch (InstantiationException e) {

System.out.println(e.getMessage());

}catch (IllegalAccessException e) {

System.out.println(e.getMessage());

}catch (ClassNotFoundException e) {

System.out.println(e.getMessage());

}catch (SQLException edd) {

edd.printStackTrace() ;

System.out.println(edd.getMessage());

}

}

void jButton1_actionPerformed(ActionEvent e) {

update();

}

}

class delbook_jButton1_actionAdapter implements java.awt.event.ActionListener {

delbook adaptee;

delbook_jButton1_actionAdapter(delbook adaptee) {

this.adaptee = adaptee;

}

public void actionPerformed(ActionEvent e) {

adaptee.jButton1_actionPerformed(e);

}

}

package untitled5;

import java.awt.*;

import java.awt.event.*;

import javax.swing.*;

import com.borland.jbcl.layout.*;

/**

* pTitle: /p

* pDescription: /p

* pCopyright: Copyright © 2003/p

* pCompany: /p

* @author not attributable

* @version 1.0

*/

public class retur extends JFrame {

JPanel contentPane;

XYLayout xYLayout1 = new XYLayout();

JLabel jLabel1 = new JLabel();

//Construct the frame

public retur() {

enableEvents(AWTEvent.WINDOW_EVENT_MASK);

try {

jbInit();

}

catch(Exception e) {

e.printStackTrace();

}

}

//Component initialization

private void jbInit() throws Exception {

contentPane = (JPanel) this.getContentPane();

jLabel1.setFont(new java.awt.Font("SansSerif", 0, 20));

jLabel1.setForeground(Color.red);

jLabel1.setText("超市管理系统");

contentPane.setLayout(xYLayout1);

this.setSize(new Dimension(400, 300));

this.setTitle("超市管理系统");

contentPane.add(jLabel1, new XYConstraints(139, 1, 126, 33));

}

//Overridden so we can exit when window is closed

protected void processWindowEvent(WindowEvent e) {

super.processWindowEvent(e);

if (e.getID() == WindowEvent.WINDOW_CLOSING) {

System.exit(0);

}

}

}

package untitled5;

import java.io.*;

import java.net.*;

import java.sql.*;

import java.lang.*;

import javax.sql.*;

import java.awt.*;

import java.awt.event.*;

import javax.swing.*;

import com.borland.jbcl.layout.*;

import com.borland.dbswing.*;

//货品信息登记

public class Frame2 extends JFrame {

JPanel contentPane;

JLabel jLabel1 = new JLabel();

XYLayout xYLayout1 = new XYLayout();

JLabel jLabel2 = new JLabel();

JLabel jLabel3 = new JLabel();

JTextField jTextField1 = new JTextField();

JLabel jLabel4 = new JLabel();

JTextField jTextField2 = new JTextField();

JPanel jPanel1 = new JPanel();

XYLayout xYLayout2 = new XYLayout();

JScrollPane jScrollPane1 = new JScrollPane();

JLabel jLabel5 = new JLabel();

JTextField jTextField3 = new JTextField();

//Construct the frame

public Frame2() {

enableEvents(AWTEvent.WINDOW_EVENT_MASK);

try {

jbInit();

}

catch(Exception e) {

e.printStackTrace();

}

}

//Component initialization

private void jbInit() throws Exception {

contentPane = (JPanel) this.getContentPane();

contentPane.setLayout(xYLayout1);

this.setSize(new Dimension(600, 500));

this.setTitle("超市管理系统");

this.addHierarchyBoundsListener(new Frame2_this_hierarchyBoundsAdapter(this));

jLabel1.setFont(new java.awt.Font("SansSerif", 0, 25));

jLabel1.setForeground(Color.red);

jLabel1.setText("超市管理系统");

contentPane.setForeground(Color.black);

jLabel2.setFont(new java.awt.Font("SansSerif", 0, 30));

jLabel2.setText("产 品 信 息 展 示");

// statusBar.setFont(new java.awt.Font("SansSerif", 0, 20));

jLabel3.setFont(new java.awt.Font("SansSerif", 0, 20));

jLabel3.setText("产品名称");

jTextField1.setText("");

jLabel4.setEnabled(true);

jLabel4.setFont(new java.awt.Font("SansSerif", 0, 20));

jLabel4.setText("产品ID号");

jTextField2.setText("");

jTextField2.addActionListener(new Frame2_jTextField2_actionAdapter(this));

jPanel1.setLayout(xYLayout2);

jLabel5.setFont(new java.awt.Font("SansSerif", 0, 25));

jLabel5.setForeground(Color.red);

jLabel5.setText("该产品详细信息");

jTextField3.setText("");

contentPane.add(jLabel1, new XYConstraints(237, 0, 153, 40));

contentPane.add(jLabel2, new XYConstraints(200, 47, 231, 58));

contentPane.add(jLabel3, new XYConstraints(47, 102, 101, 42));

contentPane.add(jTextField1, new XYConstraints(128, 108, 112, 34));

contentPane.add(jTextField2, new XYConstraints(361, 107, 109, 36));

contentPane.add(jPanel1, new XYConstraints(75, 166, 453, 277));

jPanel1.add(jScrollPane1, new XYConstraints(14, 8, 433, 221));

jScrollPane1.getViewport().add(jTextField3, null);

jPanel1.add(jLabel5, new XYConstraints(112, 240, -1, -1));

contentPane.add(jLabel4, new XYConstraints(278, 111, -1, -1));

}

//Overridden so we can exit when window is closed

protected void processWindowEvent(WindowEvent e) {

super.processWindowEvent(e);

if (e.getID() == WindowEvent.WINDOW_CLOSING) {

System.exit(0);

}

}

void Select() {

try {

String str1, str2;

str1 = jTextField1.getText();

str2 = jTextField2.getText();

跪求一个JAVA课程设计, 学生信息管理系统 含全源代码 设计报告

import java.awt.*;

import java.awt.event.*;

public class DengLuJieMian extends Frame implements ActionListener

{

Label username=new Label("用户名：");//使用文本创建一个用户名标签

TextField t1=new TextField();//创建一个文本框对象

Label password=new Label("密码：");//创建一个密码标签

TextField t2=new TextField();

Button b1=new Button("登陆");//创建登陆按钮

Button b2=new Button("取消");//创建取消按钮

public DengLuJieMian()

{

this.setTitle("学生信息管理系统");//设置窗口标题

this.setLayout(null);//设置窗口布局管理器

username.setBounds(50,40,60,20);//设置姓名标签的初始位置

this.add(username);// 将姓名标签组件添加到容器

t1.setBounds(120,40,80,20);// 设置文本框的初始位置

this.add(t1);// 将文本框组件添加到容器

password.setBounds(50,100,60,20);//密码标签的初始位置

this.add(password);//将密码标签组件添加到容器

t2.setBounds(120,100,80,20);//设置密码标签的初始位置

this.add(t2);//将密码标签组件添加到容器

b1.setBounds(50,150,60,20);//设置登陆按钮的初始位置

this.add(b1);//将登陆按钮组件添加到容器

b2.setBounds(120,150,60,20);//设置取消按钮的初始位置

this.add(b2);// 将取消按钮组件添加到容器

b1.addActionListener(this);//给登陆按钮添加监听器

b2.addActionListener(this);// 给取消按钮添加监听器

this.setVisible(true);//设置窗口的可见性

this.setSize(300,200);//设置窗口的大小

addWindowListener(new WindowAdapter()

{

public void windowClosing(WindowEvent e)

{

System.exit(0);

}

});//通过内部类重写关闭窗体的方法

}

public void actionPerformed(ActionEvent e)

{

if(e.getSource()==b1)//处理登陆事件

{

String name=t1.getText();

String pass=t2.getText();

if(name!=nullpass.equals("000123"))//判断语句

{

new StudentJieMian();

}

}

}

public static void main(String args[])//主函数

{

new DengLuJieMian();

}

}

以下方法实现了学生界面设计

import java.awt.*;

import java.awt.event.*;

class StudentJieMian extends Frame implements ActionListener

{

MenuBar m=new MenuBar();//创建菜单栏

Menu m1=new Menu("信息");//创建菜单“信息”

MenuItem m11=new MenuItem("插入");//创建“插入”的菜单项

MenuItem m12=new MenuItem("查询");

Menu m2=new Menu("成绩");//创建菜单“成绩”

MenuItem m21=new MenuItem("查询");

public StudentJieMian()

{

this.setTitle("学生界面");//设置窗口标题

this.setLayout(new CardLayout());//设置窗口布局管理器

this.setMenuBar(m);//将菜单栏组件添加到容器

m.add(m1);//将信息菜单放入菜单栏

m.add(m2);

m1.add(m11);//将“插入”菜单项添加到“信息”菜单

m1.add(m12); //将“查询”菜单项添加到“信息”菜单

m2.add(m21); //将“查询”菜单项添加到“成绩”菜单

m11.addActionListener(this); //给“插入”菜单项添加监听器

m12.addActionListener(this); //给“查询”菜单项添加监听器

m21.addActionListener(this); //给“查询”菜单项添加监听器

this.setVisible(true); //设置窗口的可见性

this.setSize(300,200); //设置窗口的大小

addWindowListener(new WindowAdapter()

{

public void windowClosing(WindowEvent e)

{

System.exit(0);//关闭窗口

}

});

}

public void actionPerformed(ActionEvent e)

{

if(e.getSource()==m11) //处理“添加信息”事件

{

new AddStudent();

}

if(e.getSource()==m12) //处理“查询信息”事件

{

new SelectStudent();

}

if(e.getSource()==m21) //处理“查询成绩”事件

{

new ChengJiStudent();

}

}

public static void main(String args[])

{ new StudentJieMian(); //创建一个对象 }

用Java 实现一个简单的学生管理系统！ 求代码，求代码！！！！

完成了，希望能帮到你

刚开始会叫你输入编号选择功能

import java.io.*;

public class student {

public static void main(String args[]) throws IOException{

int[] stud = {77,99,55,46,82,75,65,31,74,85};

System.out.println("请选择功能：");//输入编号选择功能

System.out.println("1、输入学号，查询该学生成绩：");

System.out.println("2、输入成绩，查询学生学号：");

System.out.println("3、输入学号，删除该学生成绩");

System.out.println("请选择编号：");

BufferedReader td = new BufferedReader(new InputStreamReader(System.in));

String temp = td.readLine();

int choice = Integer.valueOf(temp);

if(choice == 1){//一为查询学生成绩

System.out.println("请输入学号：");

BufferedReader sd = new BufferedReader(new InputStreamReader(System.in));

String temp_sd = sd.readLine();

int No = Integer.valueOf(temp_sd);

System.out.print("学号为 "+No+" 的学生成绩为： " + stud[No-1] +"分");

}

if(choice == 2){//二为查询学生编号

System.out.println("请输入成绩：");

BufferedReader sd = new BufferedReader(new InputStreamReader(System.in));

String chengji = sd.readLine();

int temp_cj = Integer.valueOf(chengji);

for(int i=0;istud.length;i++){

if(temp_cj == stud[i]){

System.out.print("成绩为 "+ temp_cj+ "的学生的学号为: "+(i+1));

}

}

}

if(choice == 3){//三为删除操作

System.out.println("请输入学号：");

BufferedReader sd = new BufferedReader(new InputStreamReader(System.in));

String temp_sd = sd.readLine();

int No = Integer.valueOf(temp_sd);

stud[No-1]=0;//直接赋值为0，不删除学生

System.out.print("学号为 "+No+" 的学生成绩为： " + stud[No-1] +"分");

}

}

}