Ad:

Java Discussion Thread
Unsolved
Views: 3663

Sep 18th, 2006

Name Backwards Algorithm

Expand Post »

Hi guys, back again...You guys were very helpful before and I ended up approaching it a totally different way. I used the mathematical way which is hard to explain but well...it worked so thanks.

Now I am having a problem constructing a program that prompts the user for a name and then displays it backwards. In this, I am excluding spaces so basically....john would be nhoj.

I know I am going to use toCharArray etc...But am i just going to use a for that decreases?

Similar Threads

Lee algorithm help needed in C
sorting algorithm not working correctly in C++

Klitzy

Reputation Points: 10

Solved Threads: 0

Newbie Poster

Offline

8 posts
since Sep 2006

Permalink

Sep 18th, 2006

Re: Name Backwards Algorithm

Yes a for loop that prints the characters in the array backwards would work.

iamthwee

Featured Poster

Reputation Points: 1536

Solved Threads: 431

Posting Expert

Offline

5,865 posts
since Aug 2005

Permalink

Sep 19th, 2006

Re: Name Backwards Algorithm

Yes, just like what iamthwee said. Loop would work. Store the name in an array variable and use looping statement to loop it backward.

rinoa04

Reputation Points: 52

Solved Threads: 4

Junior Poster in Training

Offline

84 posts
since Sep 2006

Permalink

Sep 19th, 2006

Re: Name Backwards Algorithm

why so hard? There's a method that will let you reverse a string using a single method call

Not going to tell you where to find it, it should be easy if you have the API docs at hand.

jwenting

Team Colleague

Reputation Points: 1658

Solved Threads: 331

duckman

Offline

7,719 posts
since Nov 2004

Permalink

Sep 20th, 2006

Re: Name Backwards Algorithm

Hi newbies in java. May i know how to do it without using array?

comtech

Reputation Points: 10

Solved Threads: 0

Newbie Poster

Offline

4 posts
since Sep 2006

Permalink

Sep 20th, 2006

Re: Name Backwards Algorithm

Did you not read jwenting's reply directly above yours? Look in the API for a single method call to reverse a String. I will give a small hint, the class is not String but does begin with it.

masijade

Moderator

Reputation Points: 1471

Solved Threads: 490

Industrious Poster

Offline

4,043 posts
since Feb 2006

Permalink

Sep 20th, 2006

Re: Name Backwards Algorithm

Click to Expand / Collapse Quote originally posted by comtech ...

Hi newbies in java. May i know how to do it without using array?

There is a string method charAt that you can use to do it without arrays.
So:

Java Syntax (Toggle Plain Text)
for(int i = s.length(); i >=0; i--){
    System.out.print(s.charAt(i);
}
System.out.println();
for(int i = s.length(); i >=0; i--){
    System.out.print(s.charAt(i);
}
System.out.println();

Dark_Omen

Reputation Points: 23

Solved Threads: 6

Posting Pro

Offline

573 posts
since Apr 2004

Permalink

Sep 20th, 2006

Re: Name Backwards Algorithm

Click to Expand / Collapse Quote originally posted by Klitzy ...

Hi guys, back again...You guys were very helpful before and I ended up approaching it a totally different way. I used the mathematical way which is hard to explain but well...it worked so thanks.

Now I am having a problem constructing a program that prompts the user for a name and then displays it backwards. In this, I am excluding spaces so basically....john would be nhoj.

I know I am going to use toCharArray etc...But am i just going to use a for that decreases?

:mrgreen: If you do a count, you can then print each letter starting from the very last number in your count until your count is 0.

tknows

Reputation Points: 10

Solved Threads: 0

Newbie Poster

Offline

1 posts
since Sep 2006

This thread is more than three months old

No one has posted to this discussion for at least three months. Please let old threads die and do not reply to them unless you feel you have something new and valuable to contribute that absolutely must be added to make the discussion complete. Otherwise, please start a new thread in this forum instead.

Previous Thread in Java Forum Timeline: validations

Next Thread in Java Forum Timeline: Java Client/Server

DaniWeb Message

Cancel Changes

User Name
Password