CODEWITHSUNDEEP
java
Billy555
Billy555

Reputation: 19

Really confused about how to load a .txt file into two arrays

I have a .txt file called capitals in my netbeans project folder which I need to create two parallel arrays for. The file contains 100 total entries, a state name on one line followed by a capital name of the next line. 50 states, 50 capitals.

I have googled and looked at examples on this site which contain the BufferedReader class but I am just not understanding the code provided to import the text file into 2 arrays and then call on them to be used in the program.

If somebody can help me with very simple explanations of code to use it would be much appreciated

Upvotes: 1

Views: 320

Answers (2)

user5500105
user5500105

Reputation: 297

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.util.Arrays;
import java.util.Scanner;

public class ReadFile {

    public static void main(String[] args) {

        String fileName = "Capitals.txt";

        int n = 50;
        String[] capital = new String[n];
        String[] state   = new String[n];

        try (Scanner inputStream = new Scanner(new FileInputStream(fileName))) {

            for (int i = 0; i < n; i++) {
                capital[i] = inputStream.nextLine();
                state[i]   = inputStream.nextLine();
            }

        } catch (FileNotFoundException e) {
            System.out.println(e.getMessage());
            return;
        }

        // do something with your arrays here
        // ...
        System.out.println(Arrays.toString(capital));
        System.out.println(Arrays.toString(state));
    }
}

Upvotes: 1

Ceelos
Ceelos

Reputation: 1126

Start by looking at FileReader
Here's a nice tutorial on how to read a file in Java.

Here are some helpfull Stackoverflow links

  • Parse data from text file in Java
  • Java - Parsing Text File

    Upvotes: 1

    • Related Questions