JAVA编程思想学习笔记4-chap10-12-斗之气4段

package com.chengjie;

public class TestInnerClass {
    class Inner {
        String str() {
            return "Inner!";
        }
    }

    public Inner getInner() {
        return new Inner();
    }

    public static void main(String[] args) {
        TestInnerClass tic = new TestInnerClass();
        TestInnerClass.Inner inner = tic.getInner();
        System.out.println(inner.str());
        inner = tic.new Inner();
        System.out.println(inner.str());
    }
}

interface  Base { }

public class TestInnerClass {
    class Inner implements Base{
        String str() {
            return "Inner!";
        }
    }
    public Base getInner() {
        return new Inner();
    }
}

package com.chengjie;

interface Service {
    void method1();
    void method2();
}

interface ServiceFactory {
    Service getService();
}

class ServiceImpl1 implements Service {
    private ServiceImpl1() {}

    @Override
    public void method1() {
        System.out.println("implment1:method1()!");
    }

    @Override
    public void method2() {
        System.out.println("implment1:method2()!");
    }

    public static ServiceFactory sf = new ServiceFactory() {
        @Override
        public Service getService() {
            return new ServiceImpl1();
        }
    };
}

public class TestFactory {
    public static void consume(ServiceFactory sf) {
        Service s = sf.getService();
        s.method1();
        s.method2();
    }

    public static void main(String[] args) {
        consume(ServiceImpl1.sf);
    }
}