title: How many Objects are created when we add two Integer Objects
body: <p>How many objects are created when we add two <code>IntegerObjects</code>:</p>
  
  <pre><code>public class IntegerObjects {
  
     public static void main(String[] args) {
        System.out.print(new Integer(50) + new Integer(10));
    }
  }
  </code></pre>
  
  <p>Is Integer, in fact all wrapper classes immutable like String?</p>