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Thread: How to remove the last comma

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    Default How to remove the last comma

    Right now my output is like this:
    2, 4, 6, 8, 10,

    What I want:
    2, 4, 6, 8, 10

    	            PrintWriter fout = new PrintWriter(new BufferedWriter(new FileWriter("numbers.dat"))); 
    	            for(int i = start; i <= 100; i = i + 2)    { 
    	                fout.print(i+","); 
    	            }


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    Default Re: How to remove the last comma

    Many ways: a) Print the comma out at the start of every loop iteration except the first (use a conditional), or b) print it out at the end of every loop iteration except for the last (use a conditional) c) limit your loop to miss the first or last iteration (depending upon choice) and print those separately (before or after, respectively).

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    Default Re: How to remove the last comma

    count=0;
    for ..{
    if (count<4){
    fout.print(i+",");count++;}
    else {fout.print(i);count=0;} 
    }
    try this

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    Default Re: How to remove the last comma

    Above code will only work for given set of numbers. What if there are only 3 numbers? 20 Numbers? 10000 numbers?

    It is easier to determine when you are at the first number than the last number. So print a comma before each number except the first.

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    Default Re: How to remove the last comma

    Here i will show you the pseudocode.
    PRINT array[FIRST_INDEX];
    LOOP I=1 TO array.LENGTH STEP 1
            PRINT "'";
            PRINT array[I];
    END LOOP

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