JAVA HELPPPPPPPPP this is not working.. for somereason and also need the bolded

Question

JAVA HELPPPPPPPPP

this is not working.. for somereason

and also need the bolded part

CAN SOMEBODY HELP ME PLEASE!!!!!!!

/**
     * This method interacts with the user to place a ship on the game board of the human player and
     * the computer opponent. The process is as follows:
     *   1 - Print the user primary board, using the printBoard.
     *   2 - Using the promptChar method, prompt the user with "Vertical or horizontal? (v/h) ".
     *       A response of v is interpreted as vertical. Anything else is assumed to be horizontal.
     *   3 - Using the promptInt method, prompt the user for an integer representing the
     *       "ship length", where the minimum ship length is Config.MIN_SHIP_LEN and the maximum
     *       ship length is width or height of the game board, depending on the input of the user
     *       from step 1.
     *   4 - Using the promptStr method, prompt the user for the "x-coord". The maximum value
     *       should be calculated based on the width of the board and the length of the ship. You
     *       will need to use the coordAlphaToNum and coordNumToAlpha methods to covert between int
     *       and String values of coordinates.
     *   5 - Using the promptInt method, prompt the user for the "y-coord". The maximum value
     *       should be calculated based on the width of the board and the length of the ship.
     *   6 - Check if there is space on the board to place the ship.
     *     6a - If so:
     *             - Place the ship on the board using placeShip.
     *             - Then, call placeRandomShip to place the opponents ships of the same length.
     *             - If placeRandomShip fails, print out the error message (terminated by a new
     *               line): "Unable to place opponent ship: id", where id is the ship id, and
     *               return false.
     *     6b - If not:
     *             - Using promptChar, prompt the user with "No room for ship. Try again? (y/n): "
     *             - If the user enters a 'y', restart the process at Step 1.
     *             - Otherwise, return false.
     *
     * @param sc The Scanner instance to read from System.in.
     * @param boardPrime The human player board.
     * @param boardOpp The opponent board.
     * @param id The ship id, assumed to be 1 to 9.
     * @param rand The Random object.
     * @return true if ship placed successfully by player and computer opponent, false otherwise.
     */
    public static boolean addShip(Scanner sc, char boardPrime[][], char boardOpp[][], int id,
           Random rand) {
           printBoard(boardPrime, "My Ships");
           char ch = promptChar(sc, "Vertical or horizontal? (v/h) ");
           boolean dir = ch == 'v' ? true : false;
          
           if (dir == true) {
           int len = promptInt(sc, "ship length", Config.MIN_SHIP_LEN, boardPrime.length);
           }
          
           else {
           int len = promptInt(sc, "ship length", Config.MIN_SHIP_LEN, boardPrime[0].length);
           }
          
           String xcoordStr = promptStr(sc, "x-coord", coordNumToAlpha(0), coordNumToAlpha(boardPrime[0].length - len));
            // I get error on this len...

           return false;
           }

Explanation / Answer

You get error, because len is a local variable inside the  if (dir == true) { block. you need to declare the len variable inside the function, not inside the if loop. Correct version:

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