Member Avatar for Zerough7707

So im just starting learrning code, and I am also using code.org as a starter tool. I'm on a lesson where it says to;

write a program that simulates the rolling of two dice. Keep rolling the dice UNTIL the sum of the dice is either a 7 OR an 11.

And I am having very much trouble for figuring out how to do that. Again, I am very new to coding.

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The task is to simulate rolling two six-sided dice repeatedly and stop when the sum is 7 or 11. ’s reminder to follow the lessons is sound — the key is basic loop control — and ’s loop hint is on the right track. The Java example below is a complete, minimal implementation and a few troubleshooting notes follow.

import java.util.concurrent.ThreadLocalRandom;

public class RollDiceUntil7or11 {
    public static void main(String[] args) {
        int die1, die2, sum;
        do {
            die1 = ThreadLocalRandom.current().nextInt(1, 7); // 1..6
            die2 = ThreadLocalRandom.current().nextInt(1, 7);
            sum = die1 + die2;
            System.out.printf("Rolled %d + %d = %d%n", die1, die2, sum);
        } while (sum != 7 && sum != 11);
        System.out.println("Stopped — sum is " + sum);
    }
}

Notes and common pitfalls:

  • Generating 1–6: nextInt(1, 7) gives 1..6; nextInt(6) + 1 is an alternate. Off-by-one errors here change outcomes.
  • Loop logic: continuing while the sum is neither 7 nor 11 uses sum != 7 && sum != 11. Using || instead creates a condition that is always true and causes an infinite loop.
  • Use a do/while when at least one roll must occur. A while loop can work too but needs an initial roll before the loop.
  • For debugging, print each roll. For reproducible testing, use a Random with a fixed seed instead of the default seeding.

If working in code.org’s block or JavaScript environments, keep the same algorithm: generate two random integers 1–6, add them, and stop when the sum equals 7 or 11. This preserves the logic without changing the core approach.

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Member Avatar for rproffitt

The most common source of this issue is skipping the lessons. Go back through the tutorials since good classes and tutorials build up to the assignment. Skip a chapter and it's like an Ikea kit missing a component.

Edited by rproffitt
Member Avatar for JamesCherrill

Here's some pseudo-code to point you in the right direction

do
    get two random numbers 1-6
    sum  them together
while( the sum is not 7 or 11)
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