JAVA征兵管理系统

一共有二部分,类是新建的一个文件不要合在一起使用
第一部分:是主体
第二部分:是类

package zhnegbingxt;

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

/*征兵系统*/
public class zbxt {
    //定义系统
    public static void main(String[] args) {
        //ArrayListarray=new ArrayList();
        ArrayList array = new ArrayList();
        while (true) {
            System.out.println("----登录征兵系统----");
            System.out.println("1 添加人员");
            System.out.println("2 删除人员");
            System.out.println("3 修改人员");
            System.out.println("4 查看人员");
            System.out.println("5 退出");
            System.out.println("请输入你的选择");
            Scanner sc = new Scanner(System.in);
            String line = sc.nextLine();
            switch (line) {
                case "1":
                    addzhengbingxt(array);
                    // System.out.println("添加人员");
                    break;

                case "2":
                   // System.out.println("删除人员");
                    addsczhangbingxt(array);
                    break;
                case "3":
                    //System.out.println("修改人员");
                    addxgzhangbingxt(array);
                    break;
                case "4":
                    addckzhengbingxt(array);
                    //System.out.println("查看人员");
                    break;
                case "5":
                    System.out.println("谢谢使用");
                    // break;
                    System.exit(0);//jvm退出
            }

        }
    }

    //定义方法添加人员
    //public static void addzhengbingxt(ArrayList array) {
    public static void addzhengbingxt(ArrayList array) {
        //键盘输入信息
        Scanner sc = new Scanner(System.in);
        String sid;
        while (true) {
            System.out.println("请输入你的编号");
             sid = sc.nextLine();
            boolean flag = isused(array, sid);
            if (flag) {
                System.out.println("你的编号已经被使用,请重新输入");
            }else {
                break;
            }
        }
        System.out.println("请输入你的姓名");
        String name = sc.nextLine();
        System.out.println("请输入你的年龄");
        String age = sc.nextLine();
        System.out.println("请输入你的电话");
        String tel = sc.nextLine();
        System.out.println("请输入你的居住地");
        String address = sc.nextLine();
        //创建对象  把键盘录入的赋值給对象的成员变量
        //zbxt zbxt = new zbxt();
        zhengbinglei w = new zhengbinglei();
        w.setSid(sid);
        w.setName(name);
        w.setAge(age);
        w.setTel(tel);
        w.setAddress(address);

        //将人员信息放到集合 中
        array.add(w);
        System.out.println("恭喜你录入成功");
    }
    //查看人员方法
    public static void addckzhengbingxt(ArrayList array) {
        //表头信息
        if (array.size()==0) {
            System.out.println("请添加输入再查询");
            return;
        }
        System.out.println("编号\t 姓名\t年龄\t电话\t居住地\t");
        for (int i = 0; i < array.size(); i++) {
            zhengbinglei s = array.get(i);
            System.out.println(s.getSid() + "\t" + s.getName() + "\t" + s.getAge() + "岁\t" + s.getTel() + "\t" + s.getAddress());
        }
    }
    public static boolean isused(ArrayListarray ,String sid){
        boolean flag=false;
        for (int i = 0; i < array.size(); i++) {
            zhengbinglei s = array.get(i);
            if (s.getSid().equals(sid)) {
            flag=true;
            break;
            }
        }
        return flag;
    }
    //删除人员
    /*
    public static void addsczhangbingxt(ArrayListarray){
        Scanner sc=new Scanner(System.in);
        System.out.println("请输入你要删除的编号");
        String sid = sc.nextLine();
        for (int i = 0; i array){
        Scanner sc=new Scanner(System.in);
        System.out.println("请输入你要删除的编号");
        String sid = sc.nextLine();
        int index=-1;
        for (int i = 0; i < array.size(); i++) {
            zhengbinglei s = array.get(i);
            if (s.getSid().equals(sid)) {
                index=i;
                break;
            }

        }
        if (index == -1) {
            System.out.println("信息不存在");
        }else{
            array.remove(index);
            System.out.println("删除人员成功");
        }
    }
    //修改人员
    public static  void addxgzhangbingxt(ArrayListarrya){
        Scanner sc=new Scanner(System.in);
        System.out.println("请输入你要修改的编号");
        String sid = sc.nextLine();
        System.out.println("请输入新的姓名:");
        String name=sc.nextLine();
        System.out.println("请输入新的年龄:");
        String age=sc.nextLine();
        System.out.println("请输入新的电话:");
        String tel=sc.nextLine();
        System.out.println("请输入新的居住地:");
        String address=sc.nextLine();
        zhengbinglei s=new zhengbinglei();
        s.setSid(sid);
        s.setName(name);
        s.setAge(age);
        s.setTel(tel);
        s.setAddress(address);
        for (int i = 0; i < arrya.size(); i++) {
            zhengbinglei zhengbinglei = arrya.get(i);
            if (zhengbinglei.getSid().equals(sid)){
                arrya.set(i,s);
                break;
            }
        }
        System.out.println("修改成功");
    }


}

第二部分

package zhnegbingxt;

public class zhengbinglei {
    //id
    private String sid;
    //姓名
    private  String name;
    //年龄
    private String age;
    //电话
    private String tel;
    //居住地
    private String address;

    public zhengbinglei() {

    }

    public zhengbinglei(String sid, String name, String age, String tel, String address) {
        this.sid = sid;
        this.name = name;
        this.age = age;
        this.tel = tel;
        this.address = address;
    }

    public String getSid() {
        return sid;
    }

    public void setSid(String sid) {
        this.sid = sid;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getAge() {
        return age;
    }

    public void setAge(String age) {
        this.age = age;
    }

    public String getTel() {
        return tel;
    }

    public void setTel(String tel) {
        this.tel = tel;
    }

    public String getAddress() {
        return address;
    }

    public void setAddress(String address) {
        this.address = address;
    }


    }