AnonymousClassComparison

AnonymousClassComparison.java

/**
 * Created by jayjay on 2016. 9. 11..
 */
public class TestInterface {
    String msg;
    int number;
    float floatNumber;

    public interface ClickListener {
        void onClick();
    }

    public static class Button {
        ClickListener listener;

        public void setListener(ClickListener listener) {
            this.listener = listener;
        }

        public void onClicked() {
            if(listener != null) {
                listener.onClick();
            }
        }
    }

    public void method() {
        ClickListener listenerA1 = new Button1ClickListenr();
        ClickListener listenerA2 = new Button2ClickListenr();
        ClickListener listenerA3 = new Button3ClickListenr();

        Button button1 = new Button();
        Button button2 = new Button();
        Button button3 = new Button();

        button1.setListener(listenerA1);
        button2.setListener(listenerA2);
        button3.setListener(listenerA3);

        button1.setListener(new ClickListener() {
            @Override
            public void onClick() {
                msg = "Hi";
                number = 2;
                floatNumber = 3;

                System.out.println("button1 clicked");
            }
        });
        button2.setListener(new ClickListener() {
            @Override
            public void onClick() {
                msg = "Hibbb";
                number = 3;
                floatNumber = 4;

                System.out.println("button2 clicked");
            }
        });
        button3.setListener(new ClickListener() {
            @Override
            public void onClick() {
                msg = "Hiaaaa";
                number = 5;
                floatNumber = 1;

                System.out.println("button3 clicked");
            }
        });

        button1.onClicked();
        button2.onClicked();
        button3.onClicked();

//        // TestInterface$1 .
//        ClickListener listener1 = new ClickListener() {
//            @Override
//            public void onClick() {
//
//            }
//        };
//
//        ClickListener listener2 = new ClickListener() {
//            @Override
//            public void onClick() {
//                msg = "Hi";
//                number = 1;
//                floatNumber = 1;
//            }
//        };
//
//        ClickListener listener3 = new ClickListener() {
//            @Override
//            public void onClick() {
//                msg = "Hi";
//                number = 1;
//                floatNumber = 1;
//            }
//        };
//
//
//
//        AbstractClass abstractClass = new AbstractClass() {
//            @Override
//            void method() {
//
//            }
//        };
    }


    public static void main(String[] args) {
        TestInterface testInterface = new TestInterface();
        testInterface.method();
    }

    public abstract class AbstractClass {
        abstract void method();
    }

    // Impl : Implementation.
    public class Button1ClickListenr implements ClickListener {
        @Override
        public void onClick() {
            msg = "Hi";
            number = 2;
            floatNumber = 3;
        }
    }

    public class Button2ClickListenr implements ClickListener {
        @Override
        public void onClick() {
            msg = "Hibbb";
            number = 3;
            floatNumber = 4;
        }
    }

    public class Button3ClickListenr implements ClickListener {
        @Override
        public void onClick() {
            msg = "Hiaaaa";
            number = 5;
            floatNumber = 1;
        }
    }
}