编辑代码

class Main {
	public static void main(String[] args) {
        //JSRUN引擎2.0，支持多达30种语言在线运行，全仿真在线交互输入输出。
        Penguin p =new Penguin("Penguin",23432);
        Mouse m =new Mouse("Mouse",324234);
        p.eat("fish");
		System.out.println("Hello world!   - java.jsrun.net ");
	}
}
class Animal{
    private String name;
    private int id;
    public Animal(String myname, int myid){
        name = myname;
        id = myid;
    }
    public void eat(){
        System.out.println(name+"正在吃");
    }
    public void sleep(){
        System.out.println(name+"正在睡");
    }
    public void introduction(){
        System.out.println("大家好！我是"    +id+"号" + name +".");
    }
    public void setname(String name){
        this.name =name;
    }
    public String getname(){
        rrturn this.name;
    }
    public int getld(){
        return this.id;
    }
}
class Penguin extends Animal{
    public Penguin(String myname,intmyid){
        super(myname,myid);
    }
    public void eat(){
        System.out.println(this.getld()+"正在吃"+this.getid());
        return food;
    }
}