调用接口中的方法

public class TestInterface {
	public static void main(String[] args) {
		Duck d = new Duck();
		TestInterface.test1(d);
		
	}
	
	public static void test1(Runner r) {// Runner r = new Duck();
		r.run();
	}
	public static void test2(Swimmer s) {// Swimmer w = new Duck();
		s.swim();
	}
	public static void test3(Flier f) {// Flier f = new Duck();
		f.fly();
	}
	

}
interface Runner{
	void run();
}  
interface Swimmer{
	void swim();
}
interface Flier{
	void fly();
}
class Duck implements Runner,Swimmer,Flier{

	@Override
	public void fly() {
		System.out.println("卢本伟牛逼");
		// TODO Auto-generated method stub
		
	}

	@Override
	public void swim() {
		System.out.println("我卢本伟没有开挂");
		// TODO Auto-generated method stub
		
	}

	@Override
	public void run() {
		System.out.println("卢本伟开挂死全家，粉丝是我家人");
		// TODO Auto-generated method stub
		
	}
	
}