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Name Backwards Algorithm

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Join Date: Sep 2006

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Reputation: Klitzy is an unknown quantity at this point

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Klitzy

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Name Backwards Algorithm

Sep 18th, 2006

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?

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Join Date: Aug 2005

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iamthwee

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Re: Name Backwards Algorithm

Sep 18th, 2006

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

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Join Date: Sep 2006

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rinoa04

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Re: Name Backwards Algorithm

Sep 19th, 2006

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

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Join Date: Nov 2004

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jwenting

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duckman

Re: Name Backwards Algorithm

Sep 19th, 2006

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.

As people are clearly allowed to attack me but I'm not allowed to defend myself, I no longer post to this site.

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Join Date: Sep 2006

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Reputation: comtech is an unknown quantity at this point

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comtech

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Re: Name Backwards Algorithm

Sep 20th, 2006

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

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Join Date: Feb 2006

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masijade

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Re: Name Backwards Algorithm

Sep 20th, 2006

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.

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Debugging is twice as hard as writing the code in the first place. Therefore, if you write the code as cleverly as possible, you are, by definition, not smart enough to debug it.
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Join Date: Apr 2004

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Dark_Omen

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Re: Name Backwards Algorithm

Sep 20th, 2006

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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:

 Help with Code Tags 
 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();

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Join Date: Sep 2006

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tknows

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Re: Name Backwards Algorithm

Sep 20th, 2006

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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.

knowledge is what I need