Reverse A String Without Allocating A New String

[marco.c84]

Hi guys,
how would I reverse a string without allocating a new string or using any temporary variables for holding information?

Thanks

[KevinWorkman]

What have you tried?

And I'm pretty sure you're just misusing some vocabulary here. It's going to be impossible to create one String based on another String without allocating a new String, even if you do end up saving that new String to the same variable.

Hint- Are you allowed to use a StringBuilder?

[masijade]

Reflection and modify the char[] "behind" the string. Not that I actually suggest you try that, but it is possible.

[KevinWorkman]

Reflection and modify the char[] "behind" the string. Not that I actually suggest you try that, but it is possible.

Hahaha! I would love it if the OP did that and handed it in as the solution.

[masijade]

Well, I would give it an A (for @ss as in <dry>Smart@ss</dry>).

[nap_patague]

String a="abcdefghijklmn";

a = new StringBuilder(a).reverse();

[masijade]

String a="abcdefghijklmn";

a = new StringBuilder(a).reverse();

That creates a new String, BTW.

[toadaly]

Strings are immutable. You can not alter a String, you can only create new ones.

[Junky]

If the actual objective is to just display the reversed String then use a reverse loop.

[Junky]

Do not spoonfeed people code as it hinders their learning.

Do not communicate privately as this goes against the spirit of sharing information on a forum.

[DarrylBurke]

It's not a spoonfeeder, it's a blasted siglink spammer. I've reported abuse on all 5 unrelated inane responses.

Chances are the email (? PM ?) if any contains more spam.

db