Reverse a string in Java

Question

I have \"Hello World\" kept in a String variable named hi.

I need to print it, but reversed.

How can I do this? I understand there

Answer 1

You can use this:

new StringBuilder(hi).reverse().toString()

Or, for versions earlier than JDK 1.5, use java.util.StringBuffer instead of StringBuilder — they have the same API. Thanks commentators for pointing out that StringBuilder is preferred nowadays when there is no concurrency concern.