public static void main(String [] args){
        
    int[][] Board = new int[7][7];
    int kills = 0;
    
    Random random = new Random();
    int x = random.nextInt(7);
    int y = random.nextInt(7);
    
    int boat = Board[x][y];
    
    Scanner input = new Scanner(System.in);
        
        while (kills < 1){
            System.out.println("Where is the boat? Enter 2 digits");
            System.out.println(x+""+y);
            int guessX = input.nextInt();
            int guessY = input.nextInt();
            if (boat == Board[guessX][guessY]){
                kills = kills + 1;
                System.out.println("Sinked!");
            }
        }
        
    }
 
</details>
# 答案1
**得分**: 1
`int boat = Board[x][y]` 将会将 `boat` 设为零。这是这些数组的每个元素的值。
要添加一艘船，您实际上必须将数组的一个元素设置为一个值。
```c
int boat = 1;
Board[x][y] = boat;