Thread: simple code help required

import java.io.*;
import java.util.Scanner;
import java.util.Vector;
 
public class test3 {
 
    public static void main(String[] args) throws IOException {     
        int counter = 0; 
        String line = null;
 
         // Location of file to read
        File file = new File("test.txt");
 
        try {
 
            Scanner scanner = new Scanner(file);
 
            while (scanner.hasNextLine()) {
                line = scanner.nextLine();
                System.out.println(line);
                //counter++;                    
            }
            scanner.close();
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        }           
        //System.out.println(counter);        
    }
}

characters from file into an array...


assuming there are 4 arrays

array 0
array 1
array 2
array 3

and string is THISISASTRING or THIS IS A STRING

array 0 TITG
array 1 HSR
array 2 IAI
array 3 SSN

values to be input in such an order..

am unable to store the file string into a string currently for now.

but it kind of doesnt work

Please, do everyone a favor and don't post vague, ambiguous, essentially worthless descriptions for help like this. Describe EXACTLY what is wrong with the code you've posted, provide a sample run with inputs/outputs, if possible. Post error messages, if any. Be specific, ask specific questions, communicate as clearly as you can.

@Billzhang:

Please do not provide solutions. Also, review this link to learn how to post code correctly along with other useful info for newcomers.

assuming there are 4 arrays

array 0
array 1
array 2
array 3

and string is THISISASTRING

array 0 TITG
array 1 HSR
array 2 IAI
array 3 SSN

values to be input in such an order..

am unable to store the file string into a string currently for now.

And why do (you think) you need to do that? What's the objective? What's the program supposed to do? How will those arrays accomplish the program's objective? There is almost always a preferred alternative to using parallel arrays to store/manipulate related data.

What you've shown is the beginning of a very big and unnecessary headache. If you answer the questions above, we should be able to suggest better approaches.

Hi Greg

The initial objective is to transposite arrays.

array 0 TITG
array 1 HSR
array 2 IAI
array 3 SSN

whereby arrays can be shuffled in any sequence,. subsequently the sequence has to be reversed to get back the initial string