Java array question

* * This program searches a 2D array for the first occurrence of a given value * e.g. if the 2D array is * 3 22 85 43 91 * 54 38 74 1 13 * 65 27 99 17 7 * * and the given value is 17, then the program returns the row (2) and column (3) * where 17 is stored */

public class Search2DArray { /** Searches a 2D array for the first occurrence of a value @param values two-dimensional array to be searched @param target number to be searched for @return an int array of length 2 containing the (zero-indexed) row and column index of the target, or return a null if the target is not found in the array */ public static int[] findValue(int[][] values, int target) { //-----------Start below here. To do: approximate lines of code = 13 // Write the method //-----------------End here. Please do not remove this comment. Reminder: no changes outside the todo regions. }

public static void main(String[] args) { int[][] array = { {0, 4, 5}, {2, 4, 9}, {0, 2, 7}, {7, 3, 6} };

for (int target = 0; target < 10; target++) { int[] location = findValue(array, target); System.out.print(target); if (location == null) { System.out.println(" not found"); } else { System.out.println(" found at row " + location[0] + " and column " + location[1]); } } System.out.println("Expected: 0 found at row 0 and column 0 1 not found 2 found at row 1 and column 0 3 found at row 3 and column 1"); System.out.println("4 found at row 0 and column 1 5 found at row 0 and column 2 6 found at row 3 and column 2"); System.out.println("7 found at row 2 and column 2 8 not found 9 found at row 1 and column 2"); } }