Add all the A tasks

Task/Apply-a-callback-to-an-array/Java/apply-a-callback-to-an-array-1.java

@@ -0,0 +1,11 @@
+interface IntToVoid {
+    void run(int x);
+}
+
+for (int z : myIntArray) {
+    new IntToVoid() {
+        public void run(int x) {
+            System.out.println(x);
+        }
+    }.run(z);
+}

Task/Apply-a-callback-to-an-array/Java/apply-a-callback-to-an-array-2.java

@@ -0,0 +1,13 @@
+interface IntToInt {
+    int run(int x);
+}
+
+int[] result = new int[myIntArray.length];
+for (int i = 0; i < myIntArray.length; i++) {
+    result[i] =
+        new IntToInt() {
+            public int run(int x) {
+                return x * x;
+            }
+        }.run(myIntArray[i]);
+}