教学管理系统java代码,java课程管理系统源码

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实现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:

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:

package bean;

public class Student {

String name;

String studentId;

String sex;

int grade;

public Student(String name,String studentId,String sex,int grade){

this.name= name;

this.studentId= studentId;

this.sex = sex;

this.grade = grade;

}

public int getGrade(){

return grade;

}

public String getName(){

return name;

}

public String getSex(){

return sex;

}

public void setGrade(int g){

this.grade = g;

}

public String getStudentId(){

return studentId;

}

}

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。

就下来就是我们的正文了。

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:

System.out.println("***************");

System.out.println("*欢迎来到学生管理系统 *");

System.out.println("*1:增加学生 *");

System.out.println("*2:删除学生 *");

System.out.println("*3:修改成绩 *");

System.out.println("*4:查询成绩 *");

System.out.println("***************");

System.out.println("您想选择的操作是:");

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:

例如这里:

import java.util.*;

之后的两行代码搞定输入:

Scanner sc = new Scanner(System.in);

int choice = sc.nextInt();

接下来就是各个功能的实现:

package test;

import java.util.*;

import bean.Student;

public class Manager {

static ListStudent StudentList = new LinkedListStudent();

public static void main(String[] agrs){

select(StudentList);

}

private static void select(ListStudent StudentList ){

System.out.println("***************");

System.out.println("*欢迎来到学生管理系统 *");

System.out.println("*1:增加学生 *");

System.out.println("*2:删除学生 *");

System.out.println("*3:修改成绩 *");

System.out.println("*4:查询成绩 *");

System.out.println("***************");

System.out.println("您想选择的操作是:");

Scanner sc = new Scanner(System.in);

int choice = sc.nextInt();

switch(choice){

//增加学生

case 1:

System.out.print("请输入学生的姓名:");

Scanner Sname = new Scanner(System.in);

String name = Sname.nextLine();

System.out.print("请输入学生的性别:");

Scanner Ssex = new Scanner(System.in);

String sex = Ssex.nextLine();

System.out.print("请输入学生的学号:");

Scanner SId = new Scanner(System.in);

String studentId = SId.nextLine();

System.out.print("请输入学生的成绩:");

Scanner Sgrade = new Scanner(System.in);

int grade = Sgrade.nextInt();

StudentList.add(new Student(name,studentId,sex,grade));

System.out.println("添加成功!!!!!");

select(StudentList);

break;

//删除学生成绩

case 2:

System.out.print("请告诉我需要删除学生的学号:");

Scanner Sid = new Scanner(System.in);

String SstudentId = Sid.nextLine();

boolean isfindDelete = false;

for (int i = 0; i StudentList.size(); i++) {

if(SstudentId.equals(StudentList.get(i).getStudentId())){

System.out.println("发现了该学生,正在删除...");

StudentList.remove(i);

System.out.println("删除成功!!!");

isfindDelete =true;

}

}

if(!isfindDelete){

System.out.println("抱歉,没有找到");

}

select(StudentList);

break;

//修改学生成绩

case 3:

System.out.print("请告诉我需要修改成绩学生的学号:");

Scanner GId = new Scanner(System.in);

String GstudentId = GId.nextLine();

boolean isfindChange = false;

for (int j = 0; j StudentList.size(); j++) {

if(GstudentId.equals(StudentList.get(j).getStudentId())){

System.out.println("发现了该学生,正在修改...");

System.out.println("学生原成绩为"+StudentList.get(j).getGrade());

System.out.print("请输入修改后学生的成绩:");

Scanner Ggrade = new Scanner(System.in);

int grade2 = Ggrade.nextInt();

StudentList.get(j).setGrade(grade2);

System.out.println("修改成功!!!");

isfindChange =true;

}else{

}

}

if(!isfindChange){

System.out.println("抱歉,没有找到");

}

select(StudentList);

break;

//查看学生成绩

case 4:

System.out.print("请告诉我需要查询学生的学号:");

Scanner CId = new Scanner(System.in);

String CstudentId = CId.nextLine();

boolean isfindData = false;

for (int i = 0; i StudentList.size(); i++) {

if(CstudentId.equals(StudentList.get(i).getStudentId())){

System.out.println("名字:"+StudentList.get(i).getName());

System.out.println("性别:"+StudentList.get(i).getSex());

System.out.println("学号:"+StudentList.get(i).getStudentId());

System.out.println("成绩:"+StudentList.get(i).getGrade());

isfindData = true;

}

}

if(!isfindData){

System.out.println("抱歉,没有找到");

}

select(StudentList);

break;

default:

System.out.println("您输入的数字有误,请重新输入:");

break;

}

}

}

可以看见,我把所有的实现过程全部放在select();方法中了,这样可以避免我选择完了一个操作后不能继续其他操作。大部分的操作都是依靠for循环来遍历操作,方便快捷。

需要完整代码,谢谢大家!需要Java的学生管理系统,具体的在下面的说明问题,有需要要求。按着要求来就行

public class Course {

private String name;

private float score;

public String getName() {

return name;

}

public void setName(String name) {

this.name = name;

}

public float getScore() {

return score;

}

public void setScore(float score) {

this.score = score;

}

public Course(String name, float score) {

this.name = name;

this.score = score;

}

public String toString() {

return this.name + ":" + this.score;

}

}

public class Student {

private long id;

private String name;

private int age;

private boolean sex;

public String toString() {

String sex = "女";

if (this.sex == true) {

sex = "男";

}

return String.format("姓名:%s,性别:%s,联系电话:%s,课程信息:%s,课程信息:%s", this.name, sex, this.phone, this.subject.toString());

}

public long getId() {

return id;

}

public void setId(long id) {

this.id = id;

}

public String getName() {

return name;

}

public void setName(String name) {

this.name = name;

}

public int getAge() {

return age;

}

public void setAge(int age) {

this.age = age;

}

public boolean isSex() {

return sex;

}

public void setSex(boolean sex) {

this.sex = sex;

}

public String getPhone() {

return phone;

}

public void setPhone(String phone) {

this.phone = phone;

}

public Course[] getSubject() {

return subject;

}

public void setSubject(Course[] subject) {

this.subject = subject;

}

private String phone;

private Course[] subject;

public Student(long i, String n, int a, boolean s, String p) {

this.id = i;

this.name = n;

this.age = a;

this.sex = s;

this.phone = p;

}

}

import java.util.ArrayList;

public class Cmanage {

private ArrayListStudent students;

//插入

public void addStudent(Student student) {

students.add(student);

}

//删除

public void delStudent(Student student) {

students.remove(student);

}

//查询

public void queryStudent() {

System.out.printf("一共有%d个学生", students.size());

for (Student student : students) {

System.out.println(student.toString());

}

}

//修改

public void updateStudent(long i, String n, int a, boolean s, String p)

{

//以姓名做为唯一标识

for(int j=0;jstudents.size();j++)

{

if (students.get(j).getName().equals(n))

{

students.get(j).setId(i);

students.get(j).setAge(a);

students.get(j).setSex(s);

students.get(j).setPhone(p);

}

}

}

}


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