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Thread: Program not returning expected value.

  1. #1
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    Default Program not returning expected value.

    The code assignment is as follows:

    /**
    * Determine if there is a majority element in an array of ints.
    * The parameter list is not altered as a result of this
    * method.
    * @param list != null
    * @return the first index of the first occurrence of the majority element if it exists.
    * If a majority element does not exist return -1.
    */

    with my test cases, it keeps returning -1, it does not seem to even use the if loops. Can anyone tell me why it is doing that?

    public static int findMajority(int[] list) {
            assert ( list != null ) : "Violation of precondition: findMajority";
            int count = 0;
            int max = (list.length / 2) + 1;
            int index = -1;
            for ( int i = 0; i < list.length;i++){
            	for ( int k =list.length-1; k <= 0;i--){
            		if (list[i] == list[k]){
            			count++;
            		if ( count >= max){
            			index = i;
            			return index;
            		}
            		}
            	}
            }
    		return index;
        }


  2. #2
    Member DanBrown's Avatar
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    Default Re: Program not returning expected value.

    for ( int k =list.length-1; k <= 0;i--)
    this line will be always false.


    k>=0
    Thanks and Regards
    Dan Brown

    Common Java Mistakes

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