适配器模式(Adapter)

Java适配器模式是为了解决合作开发中,当接口方法与实现方法不太匹配时(譬如方法名字不相同),提供的中间件来匹配接口与实现。


接口IStudy中提供了一个write方法,但是在StudyImpl类中有和write相同的功能的一个方法,但是名字是xie,所以我们需要一个适配器来将两者关联起来

package com.vincent.designpatterns.adapter;

/**
 * Created by vincent on 14-10-21.
 */
public interface IStudy {
    void write();
}

package com.vincent.designpatterns.adapter;

/**
 * Created by vincent on 14-10-21.
 */
public class StudyImpl {

    public void xie(){
        System.out.println("学习写字");
    }

}

package com.vincent.designpatterns.adapter;

/**
 * Created by vincent on 14-10-21.
 */
public class StudyAdapter extends StudyImpl implements IStudy{
    @Override
    public void write() {
       this.xie();
    }
}
package com.vincent.designpatterns.adapter;

/**
 * Created by vincent on 14-10-21.
 */
public class Main {
    public static void main(String[] args) {
        IStudy study=new StudyAdapter();
        study.write();
    }
}

最后输出结果是:学习写字
通过适配器,接口和方法关联起来了

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