Java quiz. What will be the result of compilation and executi

What will be the result of compilation and execution of the following code?


Integer i = new Integer("10");
if (i.toString() == i.toString())
   System.out.println("Equal");
else
   System.out.println("Not Equal");

Compilation error
Equal
Not Equal
None of the above

Explanation

Method toString() returns a String representation of an object.
Every time it is called on an object of class Integer, a new String object is created. Operator == compares two references to two String objects, and not the real values of those String objects.