interfacedemo.java

Java语言是目前最流行

//实现接口
interface A
{
	char a='A';
	void showa();	
}
interface B extends A
{
	char b = 'B';
	void showb();	
}
interface C
{
	char c = 'C';
	void showc();	
}
interface D extends B,C
{
	char d = 'D';
	void showd();	
}
class E implements D
{
	char e = 'E';
	public void showa()
	{System.out.println("这里是接口"+a);}	
	public void showb()
	{System.out.println("这里是接口"+b);}	
	public void showc()
	{System.out.println("这里是接口"+c);}	
	public void showd()
	{System.out.println("这里是接口"+d);}	
	public void showe()
	{System.out.println("这里是接口"+e);}	
}
class InterfaceDemo1
{
	public static void main(String[] aa)
	{
		E e = new E();
		e.showa();	
		e.showb();	
		e.showc();	
		e.showd();	
		e.showe();	
	}	
}