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String reversal

3 replies on 1 page. Most recent reply: Oct 28, 2002 1:28 AM by Jody Brown

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Nimesh

Posts: 7
Nickname: nm
Registered: Oct, 2002

String reversal

Posted: Oct 25, 2002 6:41 AM

Hi!
Can anyone tell me how to create a function which returns an initial string in reverse. I think you have to use another string where the characters of the initial string are appended backwards.

E.g Initial string = "Hello"
Returned string = "olleH"

Thanks
NM

Jody Brown

Posts: 8
Nickname: jody
Registered: Mar, 2002

Re: String reversal

Posted: Oct 25, 2002 7:22 AM

Create a StringBuffer object from your string then call the reverse() method on it. This simply reverses the contents of it.

Simple when you know how.

Nimesh

Posts: 7
Nickname: nm
Registered: Oct, 2002

Re: String reversal

Posted: Oct 26, 2002 8:18 AM

OK thanx.
I got it working...but how do I get it into a function so that it returns the reversed string. I've only been doing Java for 3 days so any examples of code would be great.

Thanx. NM

Jody Brown

Posts: 8
Nickname: jody
Registered: Mar, 2002

Re: String reversal

Posted: Oct 28, 2002 1:28 AM

A simple utility method like the following would suffice:

public String reverseString(String stringToBeReversed)
{
   StringBuffer sb = new 
         StringBuffer(stringToBeReversed);
   
   return sb.reverse().toString();
}

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