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I\'m creating (In Java) a boggle board solver using a board given to us in a .tx

ID: 3780126 • Letter: I

Question

I'm creating (In Java) a boggle board solver using a board given to us in a .txt file. I'm supposed to read it using either a BufferedReader or Scanner object and input the Strings into a 2d String array. This is what I have so far:

Scanner boardFile = new Scanner( new File(args[0]));
       String size = boardFile.next();
       int dimensions = Integer.parseInt(size);
       String[][] board = new String[dimensions][dimensions];
       String[] tempString = new String[dimensions];

       while (boardFile.hasNextLine())
       {
           for (int r = 0 ; r < board.length - 1 ; r++)
           {
               for (int c = 0 ; c < board[r].length - 1 ; c++)
                   board[r][c] = boardFile.next();
           }
       }

The txt file is given to us as (this is the 4x4 board):

4

qu e a i

n e r e

t w s t

o r k y

The issue I'm having is in the line that says for(int c = 0 ; c < board[r].length-1 ; c++). The error message I'm receiving is:

Exception in thread "main" java.util.NoSuchElementException

at java.util.Scanner.throwFor(Scanner.java:862)

at java.util.Scanner.next(Scanner.java:1371)

at Boggle.main(Boggle.java:20)

I'm not sure what I'm doing wrong when trying to read in this file?

Explanation / Answer

Here is the successfully compiling code for you:

import java.io.*;
import java.util.*;
class BoggleBoardSolver
{
public static void main(String[] args) throws FileNotFoundException
{
Scanner boardFile = new Scanner( new File(args[0]));
String size = boardFile.nextLine();
int dimensions = Integer.parseInt(size);
String[][] board = new String[dimensions][dimensions];
String[] tempString = new String[dimensions];
while (boardFile.hasNextLine())
{
for (int r = 0 ; r < board.length ; r++)
{
for (int c = 0 ; c < board[r].length; c++)
board[r][c] = boardFile.next();
}
}
}
}

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