How can I call the methods in a class to a Game class?

Question

So what I need is:

• When the user enters number 1 from the Game class it should run the methodOne in the Method class and prints out the values.

I'm having difficulties in printing the values. If someone know how to do this please help, I really appreciate it.

Here is the code for Methods with its method1 and the Game class

import java.util.Scanner;

public class Method {
    private static int Str, Dex, Con, Int, Wis, Cha;
    static Scanner sc = new Scanner(System.in);

    public static Integer[] methodOne() {
        List<Integer> stats = new ArrayList<Integer>();
        // Entering an integer by the user,
        // checking the validity and exiting
        // from the game if invalid
        System.out.print("Enter Str : ");
        Str = sc.nextInt();
        while (Str < 0) {
            System.err.println("Invalid Input!!");
            Str = sc.nextInt();
        }

        // Entering an integer by the user,
        // checking the validity and exiting
        // from the game if invalid
        System.out.print("Enter Dex : ");
        Dex = sc.nextInt();
        while (Dex < 0) {
            System.err.println("Invalid Input!!");
            Dex = sc.nextInt();
        }

        // Entering an integer by the user,
        // checking the validity and exiting
        // from the game if invalid
        System.out.print("Enter Con : ");
        Con = sc.nextInt();
        while (Con < 0) {
            System.err.println("Invalid Input!!");
            Con = sc.nextInt();
        }

        // Entering an integer by the user,
        // checking the validity and exiting
        // from the game if invalid
        System.out.print("Enter Int : "); 
        Int = sc.nextInt();
        while (Int < 0) {
            System.err.println("Invalid Input!!");
            Int = sc.nextInt();
        }

        // Entering an integer by the user,
        // checking the validity and exiting
        // from the game if invalid
        System.out.print("Enter Wis : ");
        Wis = sc.nextInt();
        while (Wis < 0) {
            System.err.println("Invalid Input!!");
            Wis = sc.nextInt();
        }

        // Entering an integer by the user,
        // checking the validity and exiting
        // from the game if invalid
        System.out.print("Enter Cha : ");
        Cha = sc.nextInt();
        while (Cha < 0) {
            System.err.println("Invalid Input!!");
            Cha = sc.nextInt();
        }

        Integer statsValue[] = stats.toArray(new Integer[0]);
        return statsValue;
    }
}

As you can see in methodTwo, 4 dice are rolled and the lowest value is suspended.

I need to assign these rolled amounts to the 6 variables and store them for later use. No need to print the values. Sorry for the trouble caused in the previous question about printing.

public static int methodTwo() {
    int dice1 = (int) (Math.random() * 1000 % 6 + 1);
    int dice2 = (int) (Math.random() * 1000 % 6 + 1);
    int dice3 = (int) (Math.random() * 1000 % 6 + 1);
    int dice4 = (int) (Math.random() * 1000 % 6 + 1);
    int total;
    // finding the lowest amount
    if (dice1 < dice2 && dice1 < dice3 && dice1 < dice4) {
        total = dice2 + dice3 + dice4;
    } else if (dice2 < dice3 && dice2 < dice4) {
        total = dice1 + dice3 + dice4;
    } else if (dice3 < dice4) {
        total = dice1 + dice2 + dice4;
    } else {
        total = dice1 + dice2 + dice3;
    }
    return total;
}

Answer 1

For Method2, I would suggest using an array of four integers, representing the four dice rolls. Then, sum it up. Find the smallest roll using a loop and subtract the sum from it.

    final int DICES = 4;
    int[] diceroll = new int[DICES];
    diceroll[0] = (int) (Math.random() * 1000 % 6 + 1);
    diceroll[1] = (int) (Math.random() * 1000 % 6 + 1);
    diceroll[2] = (int) (Math.random() * 1000 % 6 + 1);
    diceroll[3] = (int) (Math.random() * 1000 % 6 + 1);
    int total = diceroll[0] + diceroll[1] + diceroll[2] + diceroll[3];
    System.out.printf("%d %d %d %d\n", diceroll[0], diceroll[1], diceroll[2], diceroll[3]);

    // finding the lowest amount
    int min = diceroll[0];
    for (int k = 0; k < DICES; k++) {
        if (diceroll[k] < min)
            min = diceroll[k];
    }
    total -= min;

Answer 2

Unfortunately, there are some important issues with your code, that renders your ArrayList empty, meaning that the results can't be correctly printed as expected.

• You need to add the six inputted variables to stats.
• Are you sure you will only input six variables? If so, an ArrayList is not required, you can just use int[6] statsValue.
• List<Integer> stats = new ArrayList<Integer>();, that should be ArrayList<Integer>

You forgot to print the Integer ArrayList converted to array. To do that, you can either:

• Before returning StatsValue, print ArrayList stats.
• In the game, assign an int[] to the return value of Method1, then use a loop to print each integer individually.

Here is the revised code for Integer[] method1 assuming you still use the ArrayList.

public static Integer[] methodOne() {
    ArrayList<Integer> stats = new ArrayList<Integer>();

    // Entering an integer by the user,
    // checking the validity and exiting
    // from the game if invalid
    System.out.print("Enter Str : "); 
    Str = sc.nextInt();
    while (Str < 0) {
        System.err.println("Invalid Input!!");
        Str = sc.nextInt();
    }
    stats.add(Str); // Add inputs to ArrayList stats

    System.out.print("Enter Dex : ");
    Dex = sc.nextInt();
    while (Dex < 0) {
        System.err.println("Invalid Input!!");
        Dex = sc.nextInt();
    }
    System.out.print("Enter Con : "); 
    stats.add(Dex);         

    Con = sc.nextInt();
    while (Con < 0) {
        System.err.println("Invalid Input!!");
        Con = sc.nextInt();
    }
    System.out.print("Enter Int : ");
    stats.add(Con);                 

    Int = sc.nextInt();
    while (Int < 0) {
        System.err.println("Invalid Input!!");
        Int = sc.nextInt();
    }
    stats.add(Int);
    System.out.print("Enter Wis : "); 

    Wis = sc.nextInt();
    while (Wis < 0) {
        System.err.println("Invalid Input!!");
        Wis = sc.nextInt();
    }
    stats.add(Wis);
    System.out.print("Enter Cha : "); 

    Cha = sc.nextInt();
    while (Cha < 0) {
        System.err.println("Invalid Input!!");
        Cha = sc.nextInt();
    }
    stats.add(Cha);

    System.out.println(stats); // You can print elements of an Arraylist directly
    Integer statsValue[] = stats.toArray(new Integer[0]);
    return statsValue;
}