电话本管理系统（数组版）

做了一个控制台的电话本管理系统，请各位大佬提些建议，谢谢。

PublicClass类–>封装类

package com.java.demo2;

public class PublicClass {
	private String name;
	private String sex;
	private int age;
	private String phoneNumber;
	private String QQ;
	private String address;

	public PublicClass() {
		super();
	}

	public PublicClass(String name, String sex, int age, String phoneNumber, String qQ, String address) {
		super();
		this.name = name;
		this.sex = sex;
		this.age = age;
		this.phoneNumber = phoneNumber;
		QQ = qQ;
		this.address = address;
	}

	public String getName() {
		return name;
	}

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

	public String getSex() {
		return sex;
	}

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

	public int getAge() {
		return age;
	}

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

	public String getPhoneNumber() {
		return phoneNumber;
	}

	public void setPhoneNumber(String phoneNumber) {
		this.phoneNumber = phoneNumber;
	}

	public String getQQ() {
		return QQ;
	}

	public void setQQ(String qQ) {
		QQ = qQ;
	}

	public String getAddress() {
		return address;
	}

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

	public void show() {
	System.out.println("姓名=" + name + ", 性别=" + sex + ", 年龄=" + age + ", 电话号码=" + phoneNumber + ", QQ="
			+ QQ + ", 地址=" + address );
	}

}

Caozuo类–>实现界面

package com.java.demo2;

import java.util.Scanner;

public class TelephoneNumber {
	static Scanner sc = new Scanner(System.in);
	static PublicClass[] pc = new PublicClass[100];
	static int maxIdex = -1;

	public static void Caozuo() {

		System.out.println("--------------------电话本管理系统--------------------");
		System.out
				.println("1.添加" + "\t" + "2.删除" + "\t" + "3.修改" + "\t" + "4.查询所有" + "\t" + "5.根据姓名查询" + "\t" + "0.退出");
		System.out.println("--------------------电话本管理系统--------------------");
		System.out.println("请选择业务（输入0-5）");
		int number = sc.nextInt();
		switch (number) {
		case 0:
			System.out.println("感谢使用");
			System.exit(0);
		case 1:
			addNumber();
			break;
		case 2:
			deleteNumber();
			break;
		case 3:
			updateNumber();
			break;
		case 4:
			selectAllNumber();
			break;
		case 5:
			selectNameNumber();
			break;

		default:
			System.out.println("输入错误！！！");
			Caozuo();
			break;
		}

	}

	private static void addNumber() {
		PublicClass publiclass = add();
		pc[++maxIdex]=publiclass;
		System.out.println("添加成功");
		Caozuo();
	}
	private static PublicClass add() {
		System.out.println("---------添加电话本---------");
		System.out.print("姓名：");
		String name = sc.next();
		System.out.print("性别：");
		String sex = sc.next();
		System.out.print("年龄：");
		int age = sc.nextInt();
		System.out.print("电话：");
		String phoneNumber = sc.next();
		System.out.print("QQ：");
		String qq = sc.next();
		System.out.print("地址：");
		String address = sc.next();
		PublicClass publiclass = new PublicClass(name, sex, age, phoneNumber, qq, address);
		return publiclass;
	}

	private static void selectNameNumber() {
		System.out.println("---------按姓名查询---------");
		System.out.println("请输入要查询的姓名");
		String name = sc.next();
		int index = getIndexByName(name);
		System.out.println(pc[index]);
		Caozuo();

	}

	private static void selectAllNumber() {

		System.out.println("---------查询所有---------");

		for (int i = 0; i <= maxIdex; i++) {
			if (pc[i] != null) {
				pc[i].show();
				
			}
		}
		Caozuo();

	}

	private static void updateNumber() {
		System.out.println("---------修改电话簿---------");
		System.out.println("请输入要修改的姓名");
		String name = sc.next();
		int index = getIndexByName(name);
		System.out.println(pc[index]);
		System.out.println("请输入下列信息:");
		System.out.println("姓名：");
		name = sc.next();
		System.out.println("性别：");
		String sex = sc.next();
		System.out.println("年龄：");
		int age = sc.nextInt();
		System.out.println("电话号码：");
		String phoneNumber = sc.next();
		System.out.println("QQ：");
		String qq = sc.next();
		System.out.println("地址：");
		String address = sc.next();
		PublicClass pcl = new PublicClass(name, sex, age, phoneNumber, qq, address);
		pc[index] = pcl;
		pcl.show();
		System.out.println("修改成功");
		Caozuo();
	}

	public static int getIndexByName(String name) {

		for (int i = 0; i <= maxIdex; i++) {
			if (name.equals(pc[i].getName())) {
				// 找到了
				return i;
			}
		}
		return -1;

	}

	private static void deleteNumber() {

		System.out.println("---------删除电话本---------");
		System.out.println("请输入要删除的姓名：");
		String name = sc.next();
		int index = getIndexByName(name);

		if (index == -1)
			System.out.println("没有此人");

		for (int i = index; i <= maxIdex; i++) {
			pc[i] = pc[i + 1];
		}
		maxIdex--;
		System.out.println("删除成功");
		Caozuo();

	}

	

	public static void main(String[] args) {
		Caozuo();
	}

}

效果图