Java基础课程设计-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

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

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：

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：

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：

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：

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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ministrator.m2\repository\org\apache\shiro\shiro-crypto-hash\1.4.0\shiro-crypto-hash-1.4.0.jar;C:\Users\Administrator.m2\repository\org\apache\shiro\shiro-crypto-core\1.4.0\shiro-crypto-core-1.4.0.jar;C:\Users\Administrator.m2\repository\org\apache\shiro\shiro-crypto-cipher\1.4.0\shiro-crypto-cipher-1.4.0.jar;C:\Users\Administrator.m2\repository\org\apache\shiro\shiro-config-core\1.4.0\shiro-config-core-1.4.0.jar;C:\Users\Administrator.m2\repository\org\apache\shiro\shiro-config-ogdl\1.4.0\shiro-config-ogdl-1.4.0.jar;C:\Users\Administrator.m2\repository\commons-beanutils\commons-beanutils\1.9.3\commons-beanutils-1.9.3.jar;C:\Users\Administrator.m2\repository\commons-collections\commons-collections\3.2.2\commons-collections-3.2.2.jar;C:\Users\Administrator.m2\repository\org\apache\shiro\shiro-event\1.4.0\shiro-event-1.4.0.jar;C:\Users\Administrator.m2\repository\org\apache\shiro\shiro-spring\1.4.0\shiro-spring-1.4.0.jar;C:\Users\Administrator.m2\repository\org\apache\shiro\shiro-web\1.4.0\shiro-web-1.4.0.jar;C:\Users\Administrator.m2\repository\io\jsonwebtoken\jjwt\0.7.0\jjwt-0.7.0.jar;C:\Users\Administrator.m2\repository\com\fasterxml\jackson\core\jackson-databind\2.10.2\jackson-databind-2.10.2.jar;C:\Users\Administrator.m2\repository\com\github\axet\kaptcha\0.0.9\kaptcha-0.0.9.jar;C:\Users\Administrator.m2\repository\com\jhlabs\filters\2.0.235\filters-2.0.235.jar;C:\Users\Administrator.m2\repository\io\springfox\springfox-swagger2\2.7.0\springfox-swagger2-2.7.0.jar;C:\Users\Administrator.m2\repository\io\swagger\swagger-annotations\1.5.13\swagger-annotations-1.5.13.jar;C:\Users\Administrator.m2\repository\io\swagger\swagger-models\1.5.13\swagger-models-1.5.13.jar;C:\Users\Administrator.m2\repository\io\springfox\springfox-spi\2.7.0\springfox-spi-2.7.0.jar;C:\Users\Administrator.m2\repository\io\springfox\springfox-core\2.7.0\springfox-core-2.7.0.jar;C:\Users\Administrator.m2\repository\io\springfox\springfox-schema\2.7.0\springfox-schema-2.7.0.jar;C:\Users\Administrator.m2\repository\io\springfox\springfox-swagger-common\2.7.0\springfox-swagger-common-2.7.0.jar;C:\Users\Administrator.m2\repository\io\springfox\springfox-spring-web\2.7.0\springfox-spring-web-2.7.0.jar;C:\Users\Administrator.m2\repository\org\reflections\reflections\0.9.11\reflections-0.9.11.jar;C:\Users\Administrator.m2\repository\org\javassist\javassist\3.21.0-GA\javassist-3.21.0-GA.jar;C:\Users\Administrator.m2\repository\com\google\guava\guava\18.0\guava-18.0.jar;C:\Users\Administrator.m2\repository\com\fasterxml\classmate\1.5.1\classmate-1.5.1.jar;C:\Users\Administrator.m2\repository\org\springframework\plugin\spring-plugin-core\1.2.0.RELEASE\spring-plugin-core-1.2.0.RELEASE.jar;C:\Users\Administrator.m2\repository\org\springframework\plugin\spring-plugin-metadata\1.2.0.RELEASE\spring-plugin-metadata-1.2.0.RELEASE.jar;C:\Users\Administrator.m2\repository\org\mapstruct\mapstruct\1.1.0.Final\mapstruct-1.1.0.Final.jar;C:\Users\Administrator.m2\repository\io\springfox\springfox-swagger-ui\2.7.0\springfox-swagger-ui-2.7.0.jar;C:\Users\Administrator.m2\repository\com\qiniu\qiniu-java-sdk\7.2.23\qiniu-java-sdk-7.2.23.jar;C:\Users\Administrator.m2\repository\com\squareup\okhttp3\okhttp\3.14.6\okhttp-3.14.6.jar;C:\Users\Administrator.m2\repository\com\squareup\okio\okio\1.17.2\okio-1.17.2.jar;C:\Users\Administrator.m2\repository\com\aliyun\oss\aliyun-sdk-oss\2.8.3\aliyun-sdk-oss-2.8.3.jar;C:\Users\Administrator.m2\repository\org\apache\httpcomponents\httpclient\4.5.10\httpclient-4.5.10.jar;C:\Users\Administrator.m2\repository\org\jdom\jdom\1.1\jdom-1.1.jar;C:\Users\Administrator.m2\repository\com\qcloud\cos_api\4.4\cos_api-4.4.jar;C:\Users\Administrator.m2\repository\org\apache\httpcomponents\httpcore\4.4.13\httpcore-4.4.13.jar;C:\Users\Administrator.m2\repository\org\apache\httpcomponents\httpmime\4.5.10\httpmime-4.5.10.jar;C:\Users\Administrator.m2\repository\org\json\json\20140107\json-20140107.jar;C:\Users\Administrator.m2\repository\junit\junit\4.12\junit-4.12.jar;C:\Users\Administrator.m2\repository\org\hamcrest\hamcrest-core\2.1\hamcrest-core-2.1.jar;C:\Users\Administrator.m2\repository\joda-time\joda-time\2.9.9\joda-time-2.9.9.jar;C:\Users\Administrator.m2\repository\com\google\code\gson\gson\2.8.5\gson-2.8.5.jar;C:\Users\Administrator.m2\repository\com\alibaba\fastjson\1.2.72\fastjson-1.2.72.jar;C:\Users\Administrator.m2\repository\cn\hutool\hutool-all\4.1.1\hutool-all-4.1.1.jar;C:\Users\Administrator.m2\repository\org\projectlombok\lombok\1.18.4\lombok-1.18.4.jar;C:\Users\Administrator.m2\repository\io\minio\minio\8.0.3\minio-8.0.3.jar;C:\Users\Administrator.m2\repository\com\carrotsearch\thirdparty\simple-xml-safe\2.7.1\simple-xml-safe-2.7.1.jar;C:\Users\Administrator.m2\repository\com\fasterxml\jackson\core\jackson-annotations\2.10.2\jackson-annotations-2.10.2.jar;C:\Users\Administrator.m2\repository\com\fasterxml\jackson\core\jackson-core\2.10.2\jackson-core-2.10.2.jar;D:\Program 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---------

很基础、 适合java初学者来进行练习以及当做课程作业来使用