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Thread: array sorting

  1. #1
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    Default array sorting

    i know there are lots of codes about this but i tried to write my own.

    what is wrong with that?

    public static void sortingArrays( int[] a){
     
                         int k = 0;
    	int index = a[0];
    	int[] a2 = new int[a.length];
     
    	for(int i=0; i<a.length; i++){
    		for(int j=0; j<a.length; j++){
    			if ( a[j] > index ){
    				index = a[j];
    				k=j;}
    		}
    		a[k] = 0;
    		a2[i] = index;		
    		System.out.print(a2[i]);   }	
    }
    Last edited by copeg; June 26th, 2010 at 10:28 AM. Reason: Please use the CODE tags


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    Default Re: array sorting

    You never reset your index value for your outer loop so it will re-evaluate each inner loop based upon the next found max number. Some pointers
    1) Arrays.sort() is much easier and much faster for simple array sorting.
    2) you can use Integer.MIN_VALUE rather than 0 if you wish to also sort an array with negative numbers
    3) see Sorting algorithm - Wikipedia, the free encyclopedia if you wish to try your hand at more efficient sorting algorithms.

  3. #3
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    Default Re: array sorting

    thank you for your answer. I corrected the code, now I'm happy

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