[Week3][Chap11] 클래스와 인터페이스 활용 (#27)

김아린/java-basic/src/poly/ex6/AbstractAnimal.java

@@ -0,0 +1,9 @@
+package poly.ex6;
+
+public abstract class AbstractAnimal {
+    public abstract void sound();
+
+    public void move() {
+        System.out.println("동물이 이동합니다.");
+    }
+}

김아린/java-basic/src/poly/ex6/Bird.java

@@ -0,0 +1,13 @@
+package poly.ex6;
+
+public class Bird extends AbstractAnimal implements Fly{
+    @Override
+    public void sound() {
+        System.out.println("짹짹");
+    }
+
+    @Override
+    public void fly() {
+        System.out.println("새 날기");
+    }
+}

김아린/java-basic/src/poly/ex6/Chicken.java

@@ -0,0 +1,13 @@
+package poly.ex6;
+
+public class Chicken extends AbstractAnimal implements Fly {
+    @Override
+    public void sound() {
+        System.out.println("꼬끼오");
+    }
+
+    @Override
+    public void fly() {
+        System.out.println("닭 날기");
+    }
+}

김아린/java-basic/src/poly/ex6/Dog.java

@@ -0,0 +1,8 @@
+package poly.ex6;
+
+public class Dog extends AbstractAnimal {
+    @Override
+    public void sound() {
+        System.out.println("멍멍");
+    }
+}

김아린/java-basic/src/poly/ex6/Fly.java

@@ -0,0 +1,5 @@
+package poly.ex6;
+
+public interface Fly {
+    void fly();
+}

김아린/java-basic/src/poly/ex6/SoundFlyMain.java

@@ -0,0 +1,29 @@
+package poly.ex6;
+
+public class SoundFlyMain {
+    public static void main(String[] args) {
+        Dog dog = new Dog();
+        Bird bird = new Bird();
+        Chicken chicken = new Chicken();
+
+        soundAnimal(dog);
+        soundAnimal(bird);
+        soundAnimal(chicken);
+
+        flyAnimal(bird);
+        flyAnimal(chicken);
+    }
+
+    // AbstractAnimal 사용 가능
+    private static void soundAnimal(AbstractAnimal animal) {
+        System.out.println("동물 소리 테스트 시작");
+        animal.sound();
+        System.out.println("동물 소리 테스트 종료");
+    }
+
+    // Fly 인터페이스가 있으면 사용 가능
+    public static void flyAnimal(Fly fly) {
+        System.out.println("날기 테스트 시작");
+        fly.fly();
+    }
+}