question4.java

java课程的资料以及实验的代码

interface Vehicle
{
	public void start(int i);
	public void stop(int j);
}

class Bike implements Vehicle
{
	public void start(int i)
	{
		System.out.println("Bike started as "+i+"\n");
	}
	
	public void stop(int i)
	{
		System.out.println("Bike stopped as "+i+"\n");
	}
}

class Bus implements Vehicle
{
	public void start(int i)
	{
		System.out.println("Bus started as "+i+"\n");
	}
	
	public void stop(int i)
	{
		System.out.println("Bus stopped as "+i+"\n");
	}
}

class interfaceDemo
{
	public static void main(String args[])
	{
		Bike bike=new Bike();
		bike.start(10);
		bike.stop(1);
		Bus bus=new Bus();
		bus.start(20);
		bus.stop(1);
	}
}