多态学习，抽象方法调用测试

package com.djwl.test.abstractTests;

public abstract class Animal {

	public abstract void cry();
}

package com.djwl.test.abstractTests;

public class Dog extends Animal {

	@Override
	public void cry() {
		System.out.println("旺~~~~~~~~~");
	}

}

package com.djwl.test.abstractTests;

public class Cat extends Animal {

	@Override
	public void cry() {
		System.out.println("喵~~~~~~~~~");
	}



}

package com.djwl.test.abstractTests;


public class TestMain {

	public static void main(String[] args) {
		Animal cat = new Cat();
		Animal dog = new Dog();
		cat.cry();
		dog.cry();
	}
}