```
public class Solution {
public int countBattleships(char[][] board) {
int count = 0;
for(int i = 0; i < board.length; i++){
for(int j = 0; j < board[0].length; j++){
if(board[i][j] == 'X' && (i == 0 || board[i - 1][j] != 'X') && (j == 0 || board[i][j - 1] != 'X')) count++;
}
}
return count;
}
}
```