d.java

来自「由浅入深的介绍JAVAse的基本编程思想」· Java 代码 · 共 24 行

interface A{
	public void ma();
}

interface B{
	public int mb(int i);	
}

interface C extends A,B{
	public String mc();	
}

class D implements C{
	public void ma(){
		System.out.println("Implements method ma()!");	
	} 
	public int mb(int i){
		return 2000 + i;	
	}
	public String mc(){
		return "Hello!";	
	}	
}