1、学生成员类
package mystudentManage;
public class Student {
private String name;
private String stdId;
private String age;
private String place;
public Student() {
}
public Student(String name, String stdId, String age, String place) {
super();
this.name = name;
this.stdId = stdId;
this.age = age;
this.place = place;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getStdId() {
return stdId;
}
public void setStdId(String stdId) {
this.stdId = stdId;
}
public String getAge() {
return age;
}
public void setAge(String age) {
this.age = age;
}
public String getPlace() {
return place;
}
public void setPlace(String place) {
this.place = place;
}
}2、学生管理类（主类）
package mystudentManage;
import java.util.ArrayList;
import java.util.Scanner;
public class StudentManage {
public static void main(String[] args) {
ArrayList<Student> arry = new ArrayList<>();
while(true) {
//这是成绩管理系统的主界面
System.out.println("------学生管理系统------");
System.out.println(" 1.查看所有学生");
System.out.println(" 2.增加学生");
System.out.println(" 3.删除学生");
System.out.println(" 4.修改学生");
System.out.println(" 5.退出");
Scanner sc =new Scanner(System.in);
System.out.println("请输入序号选择相应的功能：");
String stufunction = sc.nextLine();
switch (stufunction) {
case "1":
//查看所有学生
findstudent(arry);
break;
case "2":
//增加学生
addstudent(arry);
break;
case "3":
//删除学生
deletestudent(arry);
break;
case "4":
//修改学生
changestudent(arry);
break;
case "5":
//退出
default:
System.out.println("谢谢你的使用.");
System.exit(0);//退出JVM
break;
}
}
}
//查找类
public static void findstudent(ArrayList<Student> arry) {
if(arry.size()==0) {
System.out.println("不好意思，目前还没有学生的信息可供查询，请返回重新操作！");
return;
}
System.out.println("学号\t姓名\t年龄\t居住地");
for(int i=0;i<arry.size();i++) {
Student s = arry.get(i);
System.out.println(s.getStdId()+"\t"+s.getName()+"\t"+s.getAge()+"\t"+s.getPlace());
}
}
//添加类
public static void addstudent(ArrayList<Student> arry) {
//创建键盘录入对象
Scanner sc= new Scanner(System.in);
String stuId;
while(true) {
System.out.println("请输入学号：");
stuId = sc.nextLine();
boolean flag = false;
for(int i=0;i<arry.size();i++) {
Student s = arry.get(i);
if(s.getStdId().equals(stuId)) {
flag = true;
break;
}
}
if(flag) {
System.out.println("您输入的账号被占用！！！");
}else {
break;
}
}
System.out.println("请输入姓名：");
String name = sc.nextLine();
System.out.println("请输入年龄：");
String age = sc.nextLine();
System.out.println("请输入居住地：");
String place = sc.nextLine();
//创建学生对象
Student s = new Student();
s.setStdId(stuId);
s.setName(name);
s.setAge(age);
s.setPlace(place);
//把学生对象添加到集合
arry.add(s);
System.out.println("添加学生成功！");
}
//删除类
public static void deletestudent(ArrayList<Student> arry) {
Scanner sc= new Scanner(System.in);
System.out.print("请输入要删除的学号：");
String deleId = sc.nextLine();
int index = -1;
for(int i=0;i<arry.size();i++) {
Student s = arry.get(i);
if(s.getStdId().equals(deleId)) {
index=i;
}
if (index == -1) {
System.out.println("你要删除的学生不存在，请重新选择！");
} else {
arry.remove(index);
System.out.println("删除学生成功！！");
}
}
}
//修改类
public static void changestudent(ArrayList<Student> arry) {
Scanner sc= new Scanner(System.in);
System.out.print("请输入要改变的学号：");
String changeId = sc.nextLine();
int index = -1;
for(int i=0;i<arry.size();i++) {
Student s = arry.get(i);
if(s.getStdId().equals(changeId)) {
index = i;
}
}
if (index == -1) {
System.out.println("您要改变的学生不存在，请重新操作！");
} else {
System.out.println("请输入新姓名：");
String name = sc.nextLine();
System.out.println("请输入新年龄：");
String age = sc.nextLine();
System.out.println("请输入新居住地：");
String place = sc.nextLine();
//创建学生对象
Student s = new Student();
s.setStdId(changeId);
s.setName(name);
s.setAge(age);
s.setPlace(place);
//修改学生对象
arry.set(index,s);
System.out.println("修改学生成功！！！");
}
}
}
3、效果图
添加：
更改：
删除：
