147.JAVA入门__学生管理系统__修改学生_程序完成

学生管理系统__修改学生——程序完成

package com.student;

import java.util.ArrayList;
import java.util.Scanner;

public class Student_plant {
public static void main(String[] args) {
ArrayList array = new ArrayList<>();
while(true){
gofirststage();
Scanner sc = new Scanner(System.in);
int button = sc.nextInt();
switch(button){
case 1:
addStudent(array);

                break;
            case 2:
                removeStudent(array);

                break;
            case 3:
                xiugaiStudent(array);

                break;
            case 4:
                lookallStudent(array);
                break;
            case 5:
                exit();
                //  break;
                System.exit(0);

        }
    }


}

public static void gofirststage(){
    System.out.println("--------欢迎来到学生管理系统---------");
    System.out.println("1.添加学生");
    System.out.println("2.删除学生");
    System.out.println("3.修改学生");
    System.out.println("4.查看所有学生");
    System.out.println("5.退出");
    System.out.println("---------------请选择：--------------");
}
public static void addStudent(ArrayList array){
    Scanner StudentInformation = new Scanner(System.in);

    System.out.println("请输入学生的姓名:");
    String name = StudentInformation.nextLine();

    System.out.println("请输入学生的年龄:");
    String age = StudentInformation.nextLine();

    System.out.println("请输入学生的学号:");
    String number = StudentInformation.nextLine();

    System.out.println("请输入学生的地址:");
    String addres = StudentInformation.nextLine();

    Student s = new Student();
    s.setName(name);
    s.setAge(age);
    s.setNumber(number);
    s.setAddres(addres);

    array.add(s);


}
public static void removeStudent(ArrayList array){

    if(array.size() == 0){
        System.out.println("无任何信息，所以无需删除");
        return; //为了让程序不向下执行
    }

    Scanner wantremovenumber = new Scanner(System.in);
    System.out.println("请输入要删除学生的学号：");
    String wantremovenumber1 = wantremovenumber.nextLine();

    Scanner wantremovename = new Scanner(System.in);
    System.out.println("请输入要删除学生的姓名：");
    String wantremovename1 = wantremovename.nextLine();

    int suoyin = 0;
    for(int i=0;i array) {

    if(array.size() == 0){
        System.out.println("无任何信息，需要添加");
        return; //为了让程序不向下执行
    }
    System.out.println("姓名\t年龄\t学号\t地址");
    for(int i=0;i array){
    if(array.size() == 0){
        System.out.println("无任何信息，所以无法修改,请先添加信息！");
        return; //为了让程序不向下执行
    }
    Scanner xiugainame = new Scanner(System.in);
    System.out.println("你想修改学生的姓名为：");
    String xiugainame1 = xiugainame.nextLine();

    Scanner xiugainumber = new Scanner(System.in);
    System.out.println("你想修改学生的学号为：");
    String xiugainumber1 = xiugainumber.nextLine();

    for(int i=0;i

}