Java實現學生管理系統(控制臺版本)
前言介紹
最近很多同學找我幫忙做一些課程設計或Web前端大作業、其中控制臺項目應該是初學者必須經歷的一個過程、作為java初學者這個控制臺版本的學生信息管理系統十分合適、用到的技術也是最簡單的JavaList集合、變量的聲明、對象的創建、一些基本的while語句、switch語句、循環遍歷等基礎語法。一個最基礎版本的控制臺學生管理系統也就是CRUD功能、 直接上完整代碼
創建學生類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方法實現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("----------學生管理系統-----------");
System.out.println("---------1.查詢學生信息---------");
System.out.println("---------2.添加學生信息---------");
System.out.println("---------3.刪除學生信息---------");
System.out.println("---------4.修改學生信息---------");
System.out.println("---------5.輸入你的選擇---------");
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("謝謝你的使用");
System.exit(0);
break;
}
}
}
}
查詢方法
public static void findAllStudent(ArrayList<Student> array) {
// TODO Auto-generated method stub
if (array.size() == 0) {
System.out.println("對不起，沒有學生信息");
System.out.println("請重新選擇");
return;
}
System.out.println("學號\t姓名\t年齡\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("請輸入你的學號");
id = input.nextLine();
// 判斷ID是否重復；
boolean flag = false;
// 遍歷集合信息
for (int x = 0; x < array.size(); x++) {
Student st = array.get(x);
// 取得該學生id與數組中id進行對比
if (st.getId().equals(id)) {
flag = true;
break;
}
}
if (flag) {
System.out.println("對不起，學號被占用");
}else{
break;
}
}
System.out.println("請輸入你的姓名");
String name = input.nextLine();
System.out.println("請輸入你的年齡");
String arg = input.nextLine();
System.out.println("請輸入你的地址");
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");
}
刪除方法
public static void deleteStudent(ArrayList array) {
System.out.println("請輸入你想刪除學生的學號");
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("請輸入你要修改的學號");
String id = input.nextLine();
int index = -1;
//變量集合
for (int i = 0; i < array.size(); i++) {
//獲取所有學生對象
Student s = array.get(i);
if (s.getId().equals(id)) {
index = i;
break;
}
}
if (index == -1) {
System.out.println("不好意思，你要修改的學生信息不存在");
} else {
System.out.println("請輸入學生姓名");
String name = input.nextLine();
System.out.println("請輸入學生年齡");
String arg = input.nextLine();
System.out.println("請輸入學生地址");
String address = input.nextLine();
//創建學生對象
Student s = new Student();
s.setId(id);
s.setId(name);
s.setArg(arg);
s.setAddress(address);
//修改集合中的學生對象
array.set(index, s);
System.out.println("修改學生成功");
}
}
控制臺打印
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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
———-學生管理系統———–
———1.查詢學生信息———
———2.添加學生信息———
———3.刪除學生信息———
———4.修改學生信息———
———5.輸入你的選擇———
1
對不起，沒有學生信息
請重新選擇
———-學生管理系統———–
———1.查詢學生信息———
———2.添加學生信息———
———3.刪除學生信息———
———4.修改學生信息———
———5.輸入你的選擇———
2
請輸入你的學號
1
請輸入你的姓名
2
請輸入你的年齡3請輸入你的地址
4添加成功
———-學生管理系統———–
———1.查詢學生信息———
———2.添加學生信息———
———3.刪除學生信息———
———4.修改學生信息———
———5.輸入你的選擇———
以上就是Java實現學生管理系統(控制臺版本)的詳細內容，更多關於Java學生管理系統的資料請關註WalkonNet其它相關文章！
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