设计模式--结构型--适配器
适配器：当复用一个存在的类A或者创建一个复用的类 ,它的接口不符合你的需求,采用此模式可以不在用子类，而是面向接口的原则进行使用存在的类
package com.adapterpattern;public class A {public void testA(){System.out.println("THIS IS TESTA");}}
接口
package com.adapterpattern;public interface Target {public void testA();public void testB();}
实现类
package com.adapterpattern;public class Aadapter implements Target {private A a = new A();public Aadapter(A a) {this.a = a;}@Overridepublic void testA() {this.a.testA();}@Overridepublic void testB() {System.out.println("THIS IS TESTB");}}
测试类
package com.adapterpattern;public class Test {public static void main(String[] args) {Target a = new Aadapter(new A());a.testA();a.testB();}}
输出
THIS IS TESTA
THIS IS TESTB
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