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Thread: Need to know if the Answer is correct?

  1. #1
    Junior Member
    Join Date
    Apr 2014
    Thanked 0 Times in 0 Posts

    Default Need to know if the Answer is correct?

    Hi everyone,
    I need to know if my following answer is right according to the Question. Thanks in advance!

    Write the Java code of the method Transpose2D that takes one 2-dimentional array (matrix) A and returns one 2-dimentional array B that is transpose of matrix A. (assume that all the rows are of the same length)

    public int[][] transpose (int[][] array) {
      if (array == null || array.length == 0)//empty or unset array, nothing do to here
        return array;
      int width = array.length;
      int height = array[0].length;
      int[][] array_new = new int[height][width];
      for (int x = 0; x < width; x++) {
        for (int y = 0; y < height; y++) {
          array_new[y][x] = array[x][y];
      return array_new;

  2. #2
    Super Moderator Norm's Avatar
    Join Date
    May 2010
    Eastern Florida
    Thanked 2,517 Times in 2,468 Posts

    Default Re: Need to know if the Answer is correct?

    What happens when the code is compiled and executed? Is the output correct?
    If you don't understand my answer, don't ignore it, ask a question.

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