如何调用这些方法？

Question

import java.util.Random;
import java.util.Scanner;

public class project2 {

    
    private static int rollDie() {
        int num_random2 = (int) (Math.random() * 6) + 1;
        System.out.println("Die 2: " + num_random2);
        return num_random2;
    }

    
    private static int rollDie2() {
        int num_random = (int) (Math.random() * 6) + 1;
        System.out.println("Die 1: " + num_random);
        return num_random;
    }

    private static void printDice(int num_random, int num_random2) {
        total = num_random + num_random2;
        System.out.println("Total: " + total);
    }

    int total = num_random + num_random2;
    private static void printSpecialMessage(int total) {
        String message1 = "Snake Eyes";
        String message2 = "Box cars";
        if (total = 12) {
            System.out.println(message2);
        } else if (total = 2) {
            System.out.println(message1);
        } else {
            break;
        }
    }
    public static void main(String[] args) {
        System.out.println("Welcome to my app!");
        System.out.println();
        System.out.println("Dice Roller");
        System.out.println();

        Scanner sc = new Scanner(System.in);

        String choice = "y";

        do {
        
            rollDie();
            rollDie2();
            printDice();
            printSpecialMessage();

            System.out.print("Roll Again? (y/n): ");
            choice = sc.next();
            System.out.println();
            
        }
        while (choice.equalsIgnoreCase("y"));
    }
}

The method printDice(int, int) in the type project2 is not applicable for the arguments ()     
    The method printSpecialMessage(int) in the type project2 is not applicable for the arguments ()

    at project2.main(project2.java:51)

Answer 1

我在你的代码中发现了几个错误。

>

if(total=12)应替换为if(total==12)。

确保在if条件中始终使用两个等于。一=用于赋值，二=用于条件检查。