Write a code (in JAVA) to traverse a matrix to count how many (@) signs are grouped. A group is when all @ symbols are touching up, down, left, and right. NOT diagonally. A comma (,) represents blank spaces in the matrix.

Top left corner of matrix is 0,0.

The first parameter will be a string containing all of the values in the grid. The values (in the string) must be converted into a String[][] matrix. The second parameter will contain a String that contains all of the coordinate pairs to check.

Print out the number of @ signs grouped at each of the coordinate pairs.

Use recursive! And program is in Java :)

Only code given:

int start(int a, int b)

{

}