I'm getting error when compiling this code for my rolling dice assignment Please fix this Java code so it will run successfully.  package dicerollinggame; import java.util.Scanner; class SingleDie {     private int sides;     public SingleDie(int sides) {         this.sides = sides;     }     public int roll() {         return (int) (Math.random() * sides) + 1;     } } class PairDice {     private SingleDie die1;     private SingleDie die2;     public PairDice(int sides) {         die1 = new SingleDie(sides);         die2 = new SingleDie(sides);     }     public int rollDice() {         int result1 = die1.roll();         int result2 = die2.roll();         return result1 + result2;     }     public boolean isSpecialCombination(int sum) {         return sum == 2 || sum == 7 || sum == 12;     } } public class Main {     public static void main(String[] args) {         Scanner sc = new Scanner(System.in);         System.out.println("Welcome to the Dice Rolling Game!");         int sides;         do {             System.out.print("Enter the number of sides for each die: ");             sides = sc.nextInt();             if (sides <= 1) {                 System.out.println("Please enter a valid number of sides for the dice.");             }         } while (sides <= 1);         PairDice dicePair = new PairDice(sides);         boolean playAgain = true;         int gamesWon = 0;         int gamesLost = 0;         while (playAgain) {             int result = dicePair.rollDice();             System.out.println("Result: " + result);             if (dicePair.isSpecialCombination(result)) {                 if (result == 2) {                     System.out.println("1 + 1 = 2 snake eyes!");                 } else if (result == 7) {                     System.out.println("7 craps!");                 } else if (result == 12) {                     System.out.println("6 + 6 = 12 box cars!");                 }                 playAgain = false;                 gamesLost++;                 System.out.println("You lost! Games won: " + gamesWon + ", Games lost: " + gamesLost);             } else if (result == 7 || result == 11) {                 playAgain = false;                 gamesWon++;                 System.out.println("You won! Games won: " + gamesWon + ", Games lost: " + gamesLost);             } else {                 System.out.println("Roll again!");             }         }         sc.close();     } }

I'm getting error when compiling this code for my rolling dice assignment

Please fix this Java code so it will run successfully. 

package dicerollinggame;

import java.util.Scanner;

class SingleDie {
    private int sides;

    public SingleDie(int sides) {
        this.sides = sides;
    }

    public int roll() {
        return (int) (Math.random() * sides) + 1;
    }
}

class PairDice {
    private SingleDie die1;
    private SingleDie die2;

    public PairDice(int sides) {
        die1 = new SingleDie(sides);
        die2 = new SingleDie(sides);
    }

    public int rollDice() {
        int result1 = die1.roll();
        int result2 = die2.roll();
        return result1 + result2;
    }

    public boolean isSpecialCombination(int sum) {
        return sum == 2 || sum == 7 || sum == 12;
    }
}

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        System.out.println("Welcome to the Dice Rolling Game!");
        int sides;

        do {
            System.out.print("Enter the number of sides for each die: ");
            sides = sc.nextInt();
            if (sides <= 1) {
                System.out.println("Please enter a valid number of sides for the dice.");
            }
        } while (sides <= 1);

        PairDice dicePair = new PairDice(sides);
        boolean playAgain = true;
        int gamesWon = 0;
        int gamesLost = 0;

        while (playAgain) {
            int result = dicePair.rollDice();

            System.out.println("Result: " + result);

            if (dicePair.isSpecialCombination(result)) {
                if (result == 2) {
                    System.out.println("1 + 1 = 2 snake eyes!");
                } else if (result == 7) {
                    System.out.println("7 craps!");
                } else if (result == 12) {
                    System.out.println("6 + 6 = 12 box cars!");
                }
                playAgain = false;
                gamesLost++;
                System.out.println("You lost! Games won: " + gamesWon + ", Games lost: " + gamesLost);
            } else if (result == 7 || result == 11) {
                playAgain = false;
                gamesWon++;
                System.out.println("You won! Games won: " + gamesWon + ", Games lost: " + gamesLost);
            } else {
                System.out.println("Roll again!");
            }
        }
        sc.close();
    }
}