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。
		System.out.println("Hello world!   - java.jsrun.net ");
        penguin p = new penguin("penguin",123);
        mouse m = new mouse("mouse",226);
        animal a = new animal("any",852);
	}
}
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 intruduction()
    {
        System.out.println("这里是"+ id + "号" + name + ".");
    }
}
mouse extends animal
{
    public mouse (String myname,int myid)
    {
        super(myname,myid);
    }
}
penguin extends animal
{
    public penguin (String myname,int myid)
    {
        super(myname,myid);
    }
}