Java实现学生管理系统(控制台版本)

前言介绍

最近很多同学找我帮忙做一些课程设计或Web前端大作业、其中控制台项目应该是初学者必须经历的一个过程、作为java初学者这个控制台版本的学生信息管理系统十分合适、用到的技术也是最简单的JavaList集合、变量的声明、对象的创建、一些基本的while语句、switch语句、循环遍历等基础语法。一个最基础版本的控制台学生管理系统也就是CRUD功能、 直接上完整代码

创建学生类Student 

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public class Student {      private String id;      private String name;      private String arg;      private String address;        public String getId() {          return id;      }        public void setId(String id) {          this .id = id;      }        public String getName() {          return name;      }        public void setName(String name) {          this .name = name;      }        public String getArg() {          return arg;      }        public void setArg(String arg) {          this .arg = arg;      }        public String getAddress() {          return address;      }        public void setAddress(String address) {          this .address = address;      }

main方法实现CRUD

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package com.railway.modules.base.test;   import java.util.ArrayList; import java.util.Scanner;   public class TestStudent {      public static void main(String[] args) {          ArrayList<Student> array = new ArrayList<Student>();          while ( true ) {              System.out.println( "----------学生管理系统-----------" );              System.out.println( "---------1.查询学生信息---------" );              System.out.println( "---------2.添加学生信息---------" );              System.out.println( "---------3.删除学生信息---------" );              System.out.println( "---------4.修改学生信息---------" );              System.out.println( "---------5.输入你的选择---------" );              Scanner input = new Scanner(System.in);              int a = input.nextInt();              switch (a) {                  case 1 :                      findAllStudent(array);                      break ;                  case 2 :                      addStudent(array);                      break ;                  case 3 :                      deleteStudent(array);                      break ;                  case 4 :                      updateStudent(array);                      break ;                  case 5 :                  default :                      System.out.println( "谢谢你的使用" );                      System.exit( 0 );                      break ;              }          }      }      }

查询方法

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public static void findAllStudent(ArrayList<Student> array) {          // TODO Auto-generated method stub          if (array.size() == 0 ) {              System.out.println( "对不起，没有学生信息" );              System.out.println( "请重新选择" );              return ;          }          System.out.println( "学号\t姓名\t年龄\t居住地" );          for ( int x = 0 ; x < array.size(); x++) {              Student s = array.get(x);              System.out.println(s.getId() + "\t" + s.getName() + "\t"                      + s.getArg() + "\t" + s.getAddress());          }      }

添加方法

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public static void addStudent(ArrayList<Student> array) {          Scanner input = new Scanner(System.in);          String id;          while ( true ){              System.out.println( "请输入你的学号" );              id = input.nextLine();              // 判断ID是否重复；              boolean flag = false ;                // 遍历集合信息              for ( int x = 0 ; x < array.size(); x++) {                  Student st = array.get(x);                  // 取得该学生id与数组中id进行对比                  if (st.getId().equals(id)) {                      flag = true ;                      break ;                    }                }              if (flag) {                  System.out.println( "对不起，学号被占用" );              } else {                  break ;              }          }          System.out.println( "请输入你的姓名" );          String name = input.nextLine();          System.out.println( "请输入你的年龄" );          String arg = input.nextLine();          System.out.println( "请输入你的地址" );          String address = input.nextLine();            Student s = new Student();          s.setId(id);          s.setName(name);          s.setArg(arg);          s.setAddress(address);          array.add(s);          System.out.println( "添加成功" );        }

删除方法

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public static void deleteStudent(ArrayList array) {          System.out.println( "请输入你想删除学生的学号" );          Scanner input = new Scanner(System.in);          String id = input.nextLine();          int index = - 1 ;          for ( int i = 0 ; i < array.size(); i++) {              Student s = (Student) array.get(i);              if (s.getId().equals(id)) {                  index = i;              }          }      }

修改方法

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public static void updateStudent(ArrayList<Student> array) {            // TODO Auto-generated method stub          Scanner input = new Scanner(System.in);          System.out.println( "请输入你要修改的学号" );          String id = input.nextLine();          int index = - 1 ;          //变量集合          for ( int i = 0 ; i < array.size(); i++) {              //获取所有学生对象              Student s = array.get(i);              if (s.getId().equals(id)) {                  index = i;                  break ;              }          }          if (index == - 1 ) {              System.out.println( "不好意思，你要修改的学生信息不存在" );          } else {              System.out.println( "请输入学生姓名" );              String name = input.nextLine();              System.out.println( "请输入学生年龄" );              String arg = input.nextLine();              System.out.println( "请输入学生地址" );              String address = input.nextLine();                //创建学生对象              Student s = new Student();              s.setId(id);              s.setId(name);              s.setArg(arg);              s.setAddress(address);                //修改集合中的学生对象              array.set(index, s);                System.out.println( "修改学生成功" );          }        }

控制台打印

"C:\Program Files\Java\jdk1.8.0_51\bin\java" -Didea.launcher.port=7534 "-Didea.launcher.bin.path=D:\Program Files (x86)\JetBrains\IntelliJ IDEA 2016.3.6\bin" -Dfile.encoding=UTF-8 -classpath "C:\Program Files\Java\jdk1.8.0_51\jre\lib\charsets.jar;C:\Program Files\Java\jdk1.8.0_51\jre\lib\deploy.jar;C:\Program Files\Java\jdk1.8.0_51\jre\lib\ext\access-bridge-64.jar;C:\Program Files\Java\jdk1.8.0_51\jre\lib\ext\cldrdata.jar;C:\Program Files\Java\jdk1.8.0_51\jre\lib\ext\dnsns.jar;C:\Program Files\Java\jdk1.8.0_51\jre\lib\ext\jaccess.jar;C:\Program Files\Java\jdk1.8.0_51\jre\lib\ext\jfxrt.jar;C:\Program Files\Java\jdk1.8.0_51\jre\lib\ext\localedata.jar;C:\Program Files\Java\jdk1.8.0_51\jre\lib\ext\nashorn.jar;C:\Program Files\Java\jdk1.8.0_51\jre\lib\ext\sunec.jar;C:\Program Files\Java\jdk1.8.0_51\jre\lib\ext\sunjce_provider.jar;C:\Program Files\Java\jdk1.8.0_51\jre\lib\ext\sunmscapi.jar;C:\Program Files\Java\jdk1.8.0_51\jre\lib\ext\sunpkcs11.jar;C:\Program 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Files (x86)\JetBrains\IntelliJ IDEA 2016.3.6\lib\idea_rt.jar" com.intellij.rt.execution.application.AppMain com.railway.modules.base.test.TestStudent
----------学生管理系统-----------
---------1.查询学生信息---------
---------2.添加学生信息---------
---------3.删除学生信息---------
---------4.修改学生信息---------
---------5.输入你的选择---------
1
对不起，没有学生信息
请重新选择
----------学生管理系统-----------
---------1.查询学生信息---------
---------2.添加学生信息---------
---------3.删除学生信息---------
---------4.修改学生信息---------
---------5.输入你的选择---------
2
请输入你的学号
1
请输入你的姓名
2
请输入你的年龄

3请输入你的地址

4添加成功
----------学生管理系统-----------
---------1.查询学生信息---------
---------2.添加学生信息---------
---------3.删除学生信息---------
---------4.修改学生信息---------
---------5.输入你的选择---------

以上就是Java实现学生管理系统(控制台版本)的详细内容，更多关于Java学生管理系统的资料请关注其它相关文章！

原文链接：https://juejin.cn/post/7107030837878587422

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