monads

haskell/sessions/16_03/scratchpad/Adhoc.java

@@ -0,0 +1,72 @@
+// Java program to show working of user defined
+// Generic classes
+
+// We use < > to specify Parameter type
+
+class Cat {
+    String breed;
+    String name;
+    boolean castrated;
+
+    Cat(String breed, String name, boolean castrated) {
+        this.breed = breed;
+        this.name = name;
+        this.castrated = castrated;
+    }
+
+    public String makeNoise() {
+        return "Meow";
+    }
+
+}
+
+class Test<T> {
+    // An object of type T is declared
+    T obj;
+
+    Test(T obj) {
+        this.obj = obj;
+    }
+
+    public T getObject() {
+        return this.obj;
+    }
+}
+
+class AdHocPolymorphic {
+    public String add(int x, int y) {
+        return "Sum: " + (x + y);
+    }
+
+    public String add(String name) {
+        return "Added " + name;
+    }
+}
+
+public class Adhoc {
+    public static void main(String[] args) {
+        AdHocPolymorphic poly = new AdHocPolymorphic();
+
+        System.out.println(poly.add(1,2));   // prints "Sum: 3"
+        System.out.println(poly.add("Jay")); // prints "Added Jay"
+
+        // error the fuck out
+    }
+}
+
+
+// Driver class to test above
+class Main {
+    public static void main(String[] args) {
+        // instance of Integer type
+        Test<Integer> iObj = new Test<Integer>(15);
+        System.out.println(iObj.getObject());
+
+        // instance of String type
+        Test<String> sObj = new Test<String>("GeeksForGeeks");
+        System.out.println(sObj.getObject());
+
+        Test<Cat> cObj = new Test<Cat>(new Cat("Siamese", "Fluffy", true));
+        System.out.println(cObj.getObject().makeNoise());
+    }
+}