请使用代码描述:  
18岁的演员景甜会吃饭(吃小龙虾)和跳舞
30岁的歌手薛之谦会吃饭(吃大闸蟹)和唱歌.
要求: 把演员和歌手的共性抽取人类中,使用抽象类和抽象方法

[Java] 纯文本查看 复制代码

public abstract class Person {
	private String name;
	private int age;
	
	public Person() {
		// TODO Auto-generated constructor stub
	}
	
	public Person(String name, int age) {
		super();
		this.name = name;
		this.age = age;
	}

	//get/set

	public String getName() {
		return name;
	}

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

	public int getAge() {
		return age;
	}

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

	//抽象方法吃饭
	public abstract void eat();
}

public class Actor extends Person{
	
	public Actor() {
		// TODO Auto-generated constructor stub
	}
	
	public Actor(String name,int age) {
		this.setName(name);
		this.setAge(age);
	}
	
	public void eat() {
		System.out.println(this.getAge()+"岁的"+this.getName()+"在吃小龙虾");
	}
	
	public void dance() {
		System.out.println(this.getAge()+"岁的"+this.getName()+"在跳白天鹅");
	}
}

public class Singer extends Person{
	
	public Singer() {
		// TODO Auto-generated constructor stub
	}
	
	public Singer(String name,int age) {
		this.setName(name);
		this.setAge(age);
	}
	
	public void eat() {
		System.out.println(this.getAge()+"岁的"+this.getName()+"在吃大闸蟹");
	}
	
	public void sing() {
		System.out.println(this.getAge()+"岁的"+this.getName()+"在演唱丑八怪");
	}
}

/*请使用代码描述:  
		18岁的演员景甜会吃饭(吃小龙虾)和跳舞 
		30岁的歌手薛之谦会吃饭(吃大闸蟹)和唱歌.
		要求: 把演员和歌手的共性抽取人类中,使用抽象类和抽象方法*/

public class Test {
	public static void main(String[] args) {
		Actor a = new Actor("景甜", 18);
		a.eat();
		a.dance();
		
		Singer s = new Singer("薛之谦", 30);
		s.eat();
		s.sing();
	}
}

请使用代码描述:  
18岁的演员景甜会吃饭(吃小龙虾)和跳舞
30岁的歌手薛之谦会吃饭(吃大闸蟹)和唱歌.
要求: 把演员和歌手的共性抽取人类中,使用抽象类和抽象方法

[Java] 纯文本查看 复制代码

public abstract class Person {
	private String name;
	private int age;
	
	public Person() {
		// TODO Auto-generated constructor stub
	}
	
	public Person(String name, int age) {
		super();
		this.name = name;
		this.age = age;
	}

	//get/set

	public String getName() {
		return name;
	}

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

	public int getAge() {
		return age;
	}

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

	//抽象方法吃饭
	public abstract void eat();
}

public class Actor extends Person{
	
	public Actor() {
		// TODO Auto-generated constructor stub
	}
	
	public Actor(String name,int age) {
		this.setName(name);
		this.setAge(age);
	}
	
	public void eat() {
		System.out.println(this.getAge()+"岁的"+this.getName()+"在吃小龙虾");
	}
	
	public void dance() {
		System.out.println(this.getAge()+"岁的"+this.getName()+"在跳白天鹅");
	}
}

public class Singer extends Person{
	
	public Singer() {
		// TODO Auto-generated constructor stub
	}
	
	public Singer(String name,int age) {
		this.setName(name);
		this.setAge(age);
	}
	
	public void eat() {
		System.out.println(this.getAge()+"岁的"+this.getName()+"在吃大闸蟹");
	}
	
	public void sing() {
		System.out.println(this.getAge()+"岁的"+this.getName()+"在演唱丑八怪");
	}
}

/*请使用代码描述:  
		18岁的演员景甜会吃饭(吃小龙虾)和跳舞 
		30岁的歌手薛之谦会吃饭(吃大闸蟹)和唱歌.
		要求: 把演员和歌手的共性抽取人类中,使用抽象类和抽象方法*/

public class Test {
	public static void main(String[] args) {
		Actor a = new Actor("景甜", 18);
		a.eat();
		a.dance();
		
		Singer s = new Singer("薛之谦", 30);
		s.eat();
		s.sing();
	}
}