java通讯录小程序,代码,

发布网友发布时间：2022-04-23 10:07

共2个回答

热心网友时间：2022-04-26 16:25

package x.y.nio;

/**
* 人员
* @author Administrator
*
*/
public class Person {
    private String name;
    private String mobile;
    private String email;
    private String address;

    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public String getMobile() {
        return mobile;
    }
    public void setMobile(String mobile) {
        this.mobile = mobile;
    }
    public String getEmail() {
        return email;
    }
    public void setEmail(String email) {
        this.email = email;
    }
    public String getAddress() {
        return address;
    }
    public void setAddress(String address) {
        this.address = address;
    }

    @Override
    public String toString() {
        return "姓名：" + name + "\t 手机：" + mobile + "\t 邮箱：" + email + "\t地址：" + address;
    }
}

package x.y.nio;

import java.util.HashMap;
import java.util.Map;
import java.util.Scanner;

public class PersonUtils {
    // 模拟数据库
    private static Map<String, Person> persons = new HashMap<String, Person>();

    public static void add(String name, String mobile, String email,
            String address) {
        Person person = new Person();
        person.setName(name);
        person.setMobile(mobile);
        person.setEmail(email);
        person.setAddress(address);

        persons.put(person.getName(), person);
    }

    public static void update(Person person) {
        persons.put(person.getName(), person);
    }

    public static void del(String name) {
        persons.remove(name);
    }

    public static void get(String name) {
        Person person = persons.get(name);
        if (person != null) {
            System.out.println(person.toString());
        }
    }

    public static void getAll() {
        for (String name : persons.keySet()) {
            Person person = persons.get(name);
            System.out.println(person.toString());
        }
    }

    public static void main(String[] args) {
        System.out.println("通讯录 \n 输入功能序号：1:添加 2:修改 3:删除 4:查询  5:列表0:退出");
        Scanner scanner = new Scanner(System.in);

        while(true){
            int i = scanner.nextInt();

            switch (i) {
                case 1:
                    System.out.print("姓名：");
                    String name = scanner.next();
                    System.out.print("手机：");
                    String mobile = scanner.next();
                    System.out.print("邮箱：");
                    String email = scanner.next();
                    System.out.print("地址：");
                    String address = scanner.next();
                    PersonUtils.add(name, mobile, email, address);
                    System.out.println("添加成功！");
                    PersonUtils.get(name);
                    break;
                case 2:
                    System.out.print("输入要修改的人的姓名：");
                    String updateName = scanner.next();
                    Person person = persons.get(updateName);
                    if(person != null){
                        System.out.print("手机：");
                        person.setMobile(scanner.next());
                        System.out.print("邮箱：");
                        person.setEmail(scanner.next());
                        System.out.print("地址：");
                        person.setAddress(scanner.next());

                        PersonUtils.update(person);
                        System.out.println("修改成功！");
                        PersonUtils.get(updateName);
                    }else{
                        System.out.println("要修改的人不存在！");
                    }


                    break;
                case 3:
                    System.out.print("输入要删除的姓名：");
                    PersonUtils.del(scanner.next());
                    System.out.println("删除成功！");
                    PersonUtils.getAll();
                    break;
                case 4:
                    System.out.print("输入要查询的姓名：");
                    PersonUtils.get(scanner.next());
                    break;
                case 5:
                    PersonUtils.getAll();
                    break;
                case 0:
                    System.exit(0);
                    break;
                default :
                    System.out.println("选项错误！");
                    break;
            }
        }

    }
}

热心网友时间：2022-04-26 17:43

我给你看看追问刚看完JAVA基础部分，其他的还不会，只用这些然后写出来这个，谢谢

追答

实体类

package com.ocaenlive.connactor.operation;

public class Connactor {
    private String id;
    private String age;
    private String sex;
    private String name;

    @Override
    public String toString() {
        return "Connactor [编号=" + id + ", 年龄=" + age + ", 性别=" + sex + ", 姓名="
                + name + "]";
    }

    public String getAge() {
        return age;
    }

    public String getId() {
        return id;
    }

    public void setId(String id) {
        this.id = id;
    }

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

    public String getSex() {
        return sex;
    }

    public void setSex(String sex) {
        this.sex = sex;
    }

    public String getName() {
        return name;
    }

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