Putting numbers into array

[MR Chahal]

Hello

I have a file with 6 numbers like this

1 <- first line
2
3
4
5
6 <- last line

The file is opened into a jTextArea in the above manner. But how can i insert those numbers into an int array?

[Justin Fox]

well i think all you have to do is put the file in the same folder..

and do this in the main program

    
File file = new File (whatever the file is);

then do the :

    
Scanner scan = new Scanner(file);
 
int i = 0;
 
int [] array = new int [6];
 
while(i < array.length)
{
    String info = "";
     if(scan.hasNext)
      {
       info += scan.nextLine;
         array[i] = Integer.parseInt(info);
      }
   i++;
}

something along those lines I believe...

someone plz correct me if i'm wrong...

-Justin-

[MR Chahal]

Hello Justin

I get this error:

symbol : class Scanner
location: class fio.Tframe
Scanner scan = new Scanner(f);

I know i have to import something but not sure what. How do i solve this?

[Ankur Sharma]

Mr. MR,

Could you pls post the whole code so that we can analyze...???

[Campbell Ritchie]

If you need an import, it would be import java.util.Scanner;

CR

[Jeff Albertson]

Be aware that java.util.Scanner is only since 1.5. If you are using this version of Java, or later, consider nextInt rather that just readLine, as well. If you are using an earlier version of Java, check out java.io.BufferedReader. And it's never a bad idea to study the IO tutorial:

http://java.sun.com/docs/books/tutorial/essential/io/index.html

[MR Chahal]

I have 1.4.2 hency why the scanner wont work. I can load and save text files with no problem. What i am doing now is take the text in the jTextArea and puting it in a String. But i dont know how to put those 6 numbers from the string into an array. Any help will be appreciated.

[Justin Fox]

umm...

i think versions before 1.5 have scanner. but to create the object

requires different syntax... like

Scanner scan = Scanner.create(file);

and in the while loop i made a boo boo, don't let info += scan.nextLine,

only info = scan.nextLine();

and you could declare info to be an int, and say.

info = scan.nextInt();

wasn't thinking i guess.

and you have to import the scanner package.

so before the...

    
public class readFile
{

type...

    
import java.util.Scanner;

I lied!! the Scanner scan = Scanner.create(); only applies to the first

beta of java 1.5... sorry!

-Justin-
[ May 03, 2006: Message edited by: Justin Fox ]