Initial data commit

Task/Higher-order-functions/Java/higher-order-functions-1.java

@@ -0,0 +1,26 @@
+public class NewClass {
+
+   public NewClass() {
+       first(new AnEventOrCallback() {
+           public void call() {
+               second();
+           }
+       });
+   }
+
+   public void first(AnEventOrCallback obj) {
+       obj.call();
+   }
+
+   public void second() {
+       System.out.println("Second");
+   }
+
+   public static void main(String[] args) {
+       new NewClass();
+   }
+}
+
+interface AnEventOrCallback {
+   public void call();
+}