[Week3][Chap11] 인터페이스 다중구현 - Diamond 문제 (#26)

임준형/java-basic/src/main/java/week3/poly/diamond/Child.java

@@ -0,0 +1,18 @@
+package week3.poly.diamond;
+
+public class Child implements InterfaceA, InterfaceB{
+    @Override
+    public void methodA() {
+        System.out.println("Child.methodA");
+    }
+
+    @Override
+    public void methodB() {
+        System.out.println("Child.methodB");
+    }
+
+    @Override
+    public void methodCommon() {
+        System.out.println("Child.methodCommon");
+    }
+}

임준형/java-basic/src/main/java/week3/poly/diamond/DiamondMain.java

@@ -0,0 +1,13 @@
+package week3.poly.diamond;
+
+public class DiamondMain {
+    public static void main(String[] args) {
+        InterfaceA a = new Child();
+        a.methodA();
+        a.methodCommon();
+
+        InterfaceB b = new Child();
+        b.methodB();
+        b.methodCommon();
+    }
+}

임준형/java-basic/src/main/java/week3/poly/diamond/InterfaceA.java

@@ -0,0 +1,6 @@
+package week3.poly.diamond;
+
+public interface InterfaceA {
+    void methodA();
+    void methodCommon();
+}

임준형/java-basic/src/main/java/week3/poly/diamond/InterfaceB.java

@@ -0,0 +1,6 @@
+package week3.poly.diamond;
+
+public interface InterfaceB {
+    void methodB();
+    void methodCommon();
+}