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Print string several times

 
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Print string several times
dufyd
13 Oct, 2008 - 05:49 PM
Post #1

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Posts: 5
CODE
    public String RepeatAtFrontAndEnd(String str, int nChars, int nRepeats){
        int chars = nChars;
        int repeats = nRepeats;
        int i;
        String sentence = str;
        if(chars == 0 || repeats == 0){
            sentence = str;
        }
        else if(str.length()<chars){
            sentence = str;
        }
        else
        
            for(i=0; i < repeats; i++){
                String toRepeat = (str.substring(0, chars));
                sentence = (toRepeat + str + toRepeat);                
        }
        return sentence;
        
        

    }


Ok. I think I have everything I need here exept that when I need to print a part of a string (toRepeat) in the front and end of the original string. I have that, what I need now is to print it (repeats) times in the front and in the end.

Can anyone help? thank you.
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Martyr2
RE: Print String Several Times
13 Oct, 2008 - 06:58 PM
Post #2

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My Contributions
Well if you want to repeat part of the string and put it onto the start and end of the original string you can use this version of your function...

java

public static String RepeatAtFrontAndEnd(String str, int nChars, int nRepeats){
        int chars = nChars;
        int repeats = nRepeats;
        int i;
        String sentence = str;
        if(chars == 0 || repeats == 0){
            sentence = str;
        }
        else if(str.length()<chars){
            sentence = str;
        }
        else {
            String toRepeat = "";
			
            // Create the repeat string itself "repeat" number of times
            for(i=0; i < repeats; i++){
                toRepeat += (str.substring(0, chars));               
            }
			
            // Then tack in onto the start and end of the str
            sentence = (toRepeat + str + toRepeat); 
        }
			
			
        return sentence;
}


Just read through the in-code comments to see what I did. Should make some sense. Enjoy!

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This post has been edited by Martyr2: 13 Oct, 2008 - 06:59 PM
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dufyd
RE: Print String Several Times
13 Oct, 2008 - 07:19 PM
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ok now it works! thanks, I am still unsure...it seems that what makes it work is the += instead of = in:

toRepeat += (str.substring(0, chars));
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