How to create an addition loop of random numbers?-CodePudding

After writing 1 on scanner I want a random dice number generated and after pressing 1 again I want another random number generated but now I want it added with previous number. I want to make a loop, I want to keep pressing 1 and keep adding random numbers till I reach a certain number. Thank you.

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

public class dice {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        
        for (int k=0; k<100;k  ) {
            
            Scanner scan =new Scanner(System.in);
            int s = scan.nextInt();
            System.out.println(s);
            
            int previous = s; 
            if (s==1) {
                Random ran = new Random();
                int n = ran.nextInt(6) 1;
                
                System.out.print(n);
                int next;
                
                while (true) {
                next=scan.nextInt();
                  
                if (next==1) {
                    
                 System.out.println(previous);
                }
                
                previous=n   10;
                        
                }
        }
        
        

    }

    }}

CodePudding user response：

Define previous outside the for loop, and replace

int previous = s; 
previous = n   10;

with

previous  = s;
previous  = n   10;

CodePudding user response：

Scanner sc=new Scanner(System.in);
int sum=0;
for(;;)
{
    if(sc.nextInt()==1)
    {
        int num = (int)(Math.random()*6);       // using the pre-defined random function in java.lang.Math class
        System.out.println("Dice Value: " num);
        sum =num;                               // shorthand adding the number for each iteration
    }
    //if(sum>100)
    //    break;
    //if statement to check if value of sum is greater/lesser than a specific number 
}
System.out.println("Final Answer: " sum)

Something like this might work (not yet tested): an infinite loop that can be terminated as per choice.

If you are looking for a way that the program works as soon as you physically press the '1' key on your keyboard, without having to press the enter key, something like a keyevent might work: https://docs.oracle.com/javase/7/docs/api/java/awt/event/KeyEvent.html

Please do let me know if there are any errors or doubts :)