Transpose Matrix -867

class Solution {
    public int[][] transpose(int[][] matrix) {
         int[][] ans = new int[matrix[0].length][matrix.length];
    for (int i = 0; i < matrix.length; ++i)
      for (int j = 0; j < matrix[0].length; ++j)
        ans[j][i] = matrix[i][j];
    return ans;
    }
}