Strings in Java : equals vs == [duplicate]

Answer 1

You should be using .equals and not == when comparing java strings.

== Compares references and therefore s2.ToString() returns s2.

From the java glossary about heap / stack:

In Sun’s JVM, the interned Strings (which includes String literals) are

stored in a special pool of RAM called the perm gen, where the JVM also loads classes and stores natively compiled code. However, the intered Strings behave no differently than had they been stored in the ordinary object heap.