封装-JAVA-2021-01-09-02

package com.user.test;

//封裝
public class AnimalTest {
     
	public static void main(String[] args) {
     
		Animal test = new Animal();
		test.name = "熊貓";
		test.setage(9);
		test.setlegs(4);
		test.show();
		int showlegs = test.getlegs();
		System.out.println("showlegs = " + showlegs);
		Person pers = new Person();
		pers.setage(11);
		System.out.println(pers.getage());
	}
}

class Animal {
     
	String name;
	private int age;
	private int legs;

	public void setage(int a) {
     
		if (a >= 0 && a <= 10) {
     
			age = a;
		} else {
     
			age = 0;
		}
	}

	public int getage() {
     
		return age;
	}

	public void setlegs(int i) {
     
		if (i >= 0 && i % 2 == 0) {
     
			legs = i;
		} else {
     
			legs = 0;
		}
	}

	public int getlegs() {
     
		return legs;
	}

	public void show() {
     
		System.out.println("name = " + name + ",age = " + age + ",lags = " + legs);
	}
}

class Person {
     
	private int age;

	public void setage(int a) {
     
		if (a >= 0 && a <= 120) {
     
			age = a;
		} else {
     
			age = 0;
		}
	}
	public int getage() {
     
		return age;
	}
}

控制台输出：

name = 熊貓,age = 9,lags = 4
showlegs = 4
11