How many String object..?

Question

Me and my friend was discussing on Strings and we stuck on this:

String str = \"ObjectOne\"+\"ObjectTwo\";

He says total three Object will

Answer 1

String str = "ObjectOne"+"ObjectTwo";

3 objects will be created as

1- "ObjectOne"

2- "ObjectTwo"

3- "ObjectOneObjectTwo"

use

StringBuffer tmp = new StringBuffer("ObjectOne");
tmp.append("ObjectTwo");
str = tmp.toString();