适配器模式

适配器模式

对象适配器模式

原对象方法

public class Adaptee {
    public int output220v() {
        return 220;
    }
}

对象接口

public interface Target {
    int output5v();
}

适配器

public class Adapter implements Target {

    private Adaptee adaptee;

    public Adapter(Adaptee adaptee) {
        this.adaptee = adaptee;
    }

    @Override
    public int output5v() {
        int i = adaptee.output220v();
        i = 5;
        return i;
    }
}

测试类

public class AdapterTest {
    public static void main(String[] args) {
        Adapter adapter = new Adapter(new Adaptee());
        int i = adapter.output5v();
        System.out.println(i);
    }
}

类适配器模式

原对象方法

public class Adaptee2 {
    public int output220v() {
        return 220;
    }
}

对象接口

public interface Target2{
    int output5v();
}

适配器

public class Adapter2 extends Adaptee2 implements Target2 {
    @Override
    public int output5v() {
        int i = super.output220v();
        i=5;
        return i;
    }
}

测试类

public class AdapterClassTest {
    public static void main(String[] args) {
        int i = new Adapter2().output5v();
        System.out.println(i);
    }
}