Largest Area in Matrix

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class LargesAreainMatrix {

    static int largestArea;
    static int crntArea;

    static  void calcArea (int[][] matrix, int row, int col, int target, boolean[][] isVisited) {

        if ((col<0) || (row<0) ||
                (col>=matrix[0].length) || (row >= matrix.length)) {
            return;
        }
        if ( isVisited[row][col]) return;
        if (matrix[row][col] != target ) return;
        isVisited[row][col] = true;
        crntArea ++ ;
        calcArea(matrix, row - 1, col, target, isVisited );
        calcArea(matrix, row , col + 1, target, isVisited );
        calcArea(matrix, row , col - 1, target, isVisited );
        calcArea(matrix, row + 1, col, target, isVisited );
    }
    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        int rowSize = Integer.parseInt(br.readLine());
        int colSize = Integer.parseInt(br.readLine());
        boolean[][] sVisited = new boolean[rowSize][colSize];
       // int target = matrix[row][col];

    }
}