案例，使用封装实现电子宠物系统的企鹅类正确输入健康值和亲密度

要求

1. 保证健康值的有效性（0-100），否则取默认值60
2. 保证亲密度的有效性（0-100），否则取默认值60

步骤一、

public class Penguin {
	private String name;
	private int health;
	private int love;
	private String gender;
	public Penguin() {//无参
		super();
	}
	
	public Penguin(String name, int health, int love, String gender) {//有参
		super();
		this.name = name;
		this.health = health;
		this.love = love;
		this.gender = gender;
	}

	
	public String getName() {
		return name;
	}

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

	public int getHealth() {
		return health;
		
	}

	public void setHealth(int health) {
		if(health<0 || health>100){
			System.out.println("健康值在1-100之间，默认值是60");
			this.health =60;
			return;
		}
		this.health = health;
	}

	public int getLove() {
		return love;
	}

	public void setLove(int love) {
		if (love<0 || love>100){
			System.out.println("爱心值为0-100，默认值为60");
			this.love=60;
			return;
		}
		this.love = love;
	}

	public String getGender() {
		return gender;
	}

	public void setGender(String gender) {
		this.gender = gender;
	}
	
	public void show(){
		System.out.println();
		System.out.println("宠物的告白");
		System.out.println("我的名字叫做"+this.name+",健康值为"+this.health+",和主人的亲密值为"+love+",我的性别是"+gender);
	}

步骤二、

import java.util.Scanner;

public class Penguintest {

	public static void main(String[] args) {
		Scanner input =new Scanner(System.in);
		Penguin qe=new Penguin();
		
		System.out.println("欢迎来到宠物店");
		System.out.print("请输入您想领养宠物的名字：");
		String name =input.next();
		System.out.print("请选择你想要领养的宠物：(1、企鹅  2、狗狗)");
		int Chongwu=input.nextInt();
		if (Chongwu==1){
			System.out.print("请您输入宠物的性别: (1、Q仔  2、Q妹)");
			int gender1 =input.nextInt();
			String gender =gender1==1?"Q仔":"Q妹";
			System.out.println("请输入企鹅的健康值(1-100之间：)");
			int health =input.nextInt();
			qe.setHealth(health);
			System.out.println("请输入企鹅的爱心值(1-100之间：)");
			int love =input.nextInt();
			qe.setName(name);
			qe.setGender(gender);
			
			qe.setLove(love);
			qe.show();
			
		}else{
			System.out.print("请您输入宠物的性别: (1、狗仔  2、狗妹)");
			int gender1 =input.nextInt();
			String gender =gender1==1?"狗仔":"狗妹";
			System.out.println("请输入狗狗的健康值(1-100之间：)");
			int health =input.nextInt();
			qe.setHealth(health);
			System.out.println("请输入狗狗的爱心值(1-100之间：)");
			int love =input.nextInt();
			qe.setName(name);
			qe.setGender(gender);
			
			qe.setLove(love);
			qe.show();
			
		}
		
		
		
	}