/*
 * 02100 + 02199 Programming
 * Exercise 28: Writing to a file
 * Author: Torben Gjaldbæk, c9718383
 */

import java.io.*;

/*
 * The main method of this class writes two arrays of integers to the file
 * 'data.txt'.
 */
public class IntArrayWriter {

	public static void main (String[] args) {

		// allocate arrays to be written
		int[] array1 = {2, 3, 5, 7, 11, 13, 17, 19, 23, 29};
    int[] array2 = {1, 1, 2, 3, 5, 8, 13, 21, 34, 55};

    try {
     	// create output streams
     	FileWriter fileWriter = new FileWriter ("data.txt");
     	BufferedWriter buffer = new BufferedWriter(fileWriter);
     	PrintWriter outFile = new PrintWriter(buffer);

     	// strings to be written
     	String string1 = "";
     	String string2 = "";

     	for (int i = 0; i < array1.length; i++) {
     		string1 = string1 + array1[i] + " ";
     		string2 = string2 + array2[i] + " ";
     	}

     	// write the strings
     	outFile.println(string1);
     	outFile.println(string2);

     	// close output stream
     	outFile.close();

     	// print OK message
     	System.out.println("The two arrays of integers were written to the file 'data.txt'.");
		}
		catch (IOException exception) {
     	System.out.println (exception);
   	}
 	}
}