Flashcards

import java.io.File;
import java.io.FileNotFoundException;
import java.util.ArrayList;
import java.util.Random;
import java.util.Scanner;

public class Flashcards {
    public static void main(String[] args) throws FileNotFoundException {
        Random rand = new Random();
        String FlashCardsFile = "Cards";
        Scanner s = new Scanner(System.in);
        File file = new File(FlashCardsFile);
        Scanner in = new Scanner(file);
        int counter = 1;
        int DefAmount = 1;
        ArrayList<String> words = new ArrayList<String>();
        ArrayList<String> definitions = new ArrayList<String>();
        while (in.hasNextLine()) {
            if (counter == 1) {
                words.add(in.nextLine());
                counter++;
            }
            if (counter == 2) {
                definitions.add(in.nextLine());
                DefAmount++;
                counter = 1;
            }
        }
        DefAmount -= 1;
        while (DefAmount > 0) {
            printFlashCard(words, definitions, DefAmount);
            DefAmount -= 1;
        }
    }

    public static void printArrayList(ArrayList<String> s) {
        for (int i = 0; i < s.size(); i++) {
            System.out.println(s.get(i));
        }
    }

    public static void printArrayListIndex(ArrayList<String> s, int i) {
        System.out.println(s.get(i));
    }
    public static void printFlashCard(ArrayList<String> words, ArrayList<String> definitions, int DefAmount) {
        Random rand = new Random();
        Scanner s = new Scanner(System.in);
        int number = rand.nextInt(DefAmount);
        System.out.println(words.get(number));
        String confirmation = (String) s.nextLine();
        System.out.println(definitions.get(number));
        System.out.println("----------==========[*]==========----------");
        words.remove(number);
        definitions.remove(number);
    }

}