Question

Possible Duplicate:
How do I compare strings in Java?

I cant understand why the declared variables is not the same.

ex code:

 String firstPart = "F";
 String whole = "False";
 String connected = firstPart + "alse";
 System.out.println(connected == whole);

Now this produce a boolean and I thought it would be ‘true’ BUT it is not, It comes out as false and I don’t understand why.

Can someone explain this?

Answer 1

This

String connected = firstPart + "alse";

creates a new String object, with a new underlying char array and a new reference.

Consequently when you compare references (using ‘==”) you won’t get a match. If you compare the actual object contents using equals() then you’ll get the result you want (since String.equals() compares the contents of the underlying char arrays)