如何在if语句中获取返回true的方法

Question

public boolean occursInBox(int digit, int[][] box) 
{
    //complete this method
    if (digit > 0 && digit > 9)
    {
        for (int row = 0; row < 3; row++)
        {
            for (int col = 0; col < 3; col++)
            {
                if(box[row][col] == digit)
                {
                    return true;
                }
            }
        }
    }
    return false;
}



public boolean occursInBox(int digit, int row, int column) 
{
    //complete this method

    int boxRow = (row/3);
    int boxCol = (column/3);

        if (occursInBox(digit, getBox(boxRow, boxCol) == true))
        {
            return true;
        }

    return false;
}

我希望if语句只有在if语句中放入的方法为true但它表示类型是无比的int [] []和Boolean时才能通过。 if语句中的方法采用第一个happenInBox方法，它应该能够接受布尔变量

Answer 1

if (occursInBox(digit, getBox(boxRow, boxCol) == true))

应该是

if (occursInBox(digit, getBox(boxRow, boxCol)) == true)

甚至更好

if (occursInBox(digit, getBox(boxRow, boxCol)))