Search a 2D Matrix

class Solution {
    public boolean searchMatrix(int[][] matrix, int target) {
        for(int i = 0; i<matrix.length; i++){
            for(int j = 0; j<matrix[i].length; j++){
                if(matrix[i][j] == target){
                    return true;
                }
            }
        }   
        return false;
    }
}