客戶端不應該依賴它不需要的介面，即一個類對另外一個類依賴應該建立在最小的介面上

package com.yang.segregation;

public class Segretion {
   public static void main(String[] args) {
	
}
}

interface  Interface{
	void a();
	void  b();
	void  c();
}

class  B  implements  Interface{
	@Override
	public void a() {
		// TODO Auto-generated method stub
 

		System.out.println("B實現了a");
	}
	@Override
	public void b() {
		// TODO Auto-generated method stub
		System.out.println("B實現了B");
	}
	@Override
	public void c() {
		// TODO Auto-generated method stub
		System.out.println("B實現了C");
	}
}

class  C  implements  Interface{

	@Override
 

	public void a() {
		// TODO Auto-generated method stub
		System.out.println("C實現了a");
	}

	@Override
	public void b() {
		// TODO Auto-generated method stub
		System.out.println("C實現了B");
	}

	@Override
	public void c() {
		// TODO Auto-generated method stub
		System.out.println("C實現了C"
 
);
	}
}

class  A{
	public void depend(Interface i) {
		i.a();
	}
	
	public void depend1(Interface i) {
		i.b();
	}
	
	public void depend2(Interface i) {
		i.c();
	}
}

class  C1{
	public void depend(Interface i) {
		i.a();
	}
	
	public void depend1(Interface i) {
		i.b();
	}
	
	public void depend2(Interface i) {
		i.c();
	}
}