1.定義：客戶端不要依賴它不需要的接口，一個類對另一個類的依賴應該建立在最小的接口上。

2.註意適度原則，一定要適度

3.優點：符合我們常說的高內聚低耦合的設計思想，從而使得類具有很好的可讀性、可擴展性和可維護性。

4.實例目錄package

5.實例UML類圖

6.代碼

1 package com.geely.design.principle.interfacesegregation;
2 
3 public interface IAnimalAction {
4     void eat();
5     void fly();
6     void swim();
7 }

 1
 
 package com.geely.design.principle.interfacesegregation;
 2 
 3 public class Bird implements IAnimalAction{
 4     public void eat() {
 5 
 6     }
 7 
 8     public void fly() {
 9 
10     }
11 
12     public void swim() {
13 
14     }
15 }

1 package com.geely.design.principle.interfacesegregation;
 
2 
3 public interface IEatAnimalAction {
4     void eat();
5 }

1 package com.geely.design.principle.interfacesegregation;
2 
3 public interface ISwimAnimalAction {
4     void swim();
5 }

1 package com.geely.design.principle.interfacesegregation;
2 
3 public interface IFlyAnimalAction {
4     void
 
 fly();
5 }

 1 package com.geely.design.principle.interfacesegregation;
 2 
 3 public class Dog implements ISwimAnimalAction,IEatAnimalAction {
 4     public void eat() {
 5 
 6     }
 7 
 8     public void swim() {
 9 
10     }
11 }

接口隔離原則