CareerCup

From the book: Effictive Java(Page 20)
Avoid creating unnecessary objects -
It is often appropriate to reuse a single object instead of creating a new function-ally equivalent object each time it is needed. Reuse can be both faster and more stylish. An object can always be reused if it is immutable.

As an extreme example of what not to do, consider this statement:

String s = new String("stringette"); // DON'T DO THIS!

The statement creates a new String instance each time it is executed and none of those object creations is necessary. The argument to the String constructor("stringette") is itself a String instance, functionally identical to all of the objects created by the constructor. If this usage occurs in a loop or in a frequently invoked, millions of String instances can be created needlessly.

The improved version is simply the following:

String s = "stringette";

This version uses a single String instance, rather than creating a new one each time it is executed. Furthermore, it is guaranteed that the object will be reused by any other code running in the same virtual machine that happens to contain the same string literal.

yes, it will.

no error, but second one is more costly...

Both are equals but Forst statement creates one object in memory and another creates 2 object one in pool area and another in non pool area.

I am just the messenger, just wanted to list the questions they asked.

Any reason it shouldn't?

lol.
Just type it in Java and See. it will compile.

Stupid question.

Yes its absolutely correct. :)

Both are correct, Ideally we should use 1st one.