How to check if a pair of values exist on a 2-dimensional array in java

I have a 2d array of that form:

int[][] moves ;
moves = new int[][]{{1, 2}, {1, -2}, {2, 1}, {2, -1}, {-1, 2},
            {-1, -2}, {-2, 1}, {-2, -1}};

and i want to check programmaticaly if a pair of values {j,k} exist on my 2d array moves.