array question

[dazednconfused]

How do I store the first number from a file and use it to make an array of that number?

ex:
5 //want to store this number
1 2 3 4 5 // and loop to see if this is an array of 5.

[Fubarable]

First things first... do you know how to read a text file? Do you know how you would you get that first line to begin with?

[dazednconfused]

Yes i know how to read from a file and get it to print out the integers, but I am not very good with arrays. I don't know how to make it read the first integer and store it with out storing it into an array. I hope that makes since=)

[dazednconfused]

This is what I ave so far, but it is spitting out random yes's and no's.

import java.util.*;
import java.io.*;

import static java.lang.System.out;

public class Squares {

public static void main(String[]args)
{
int square;
int matrix [][]= new int [64][64];
int counter=1;
int n;

Scanner filename = new Scanner(System.in);

out.print("Enter file name: ");
String inputfilename = filename.nextLine();

out.print("Enter output name: ");
String outputfilename = filename.nextLine();

out.println();


try
{
File inputFile = new File(inputfilename);
File outputFile = new File(outputfilename);

filename = new Scanner(inputFile);

out.println("Square #"+counter+":" );

while(filename.hasNextInt())
{
square = filename.nextInt();


for(int i=1; i<= square; i++)
{
for(int j=0; j <= square; j++)
{
matrix[i][j]=((i+1)+j)%square;

if (matrix[i][j] == 0)
{
out.println("Yes!");
}
else
{
out.println("no");
}

}
}


counter++;

}
}
catch(FileNotFoundException e)
{
out.print("File not found!");
}
}


}

[Fubarable]

Just read the first line of the file via fileName.nextLine() and parse that line. Then and only then do you go into your while loop.