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Thread: Beginner, need help with basic code

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    Post Beginner, need help with basic code

    I have a task where i input x and y coordinates and it tells me if it's gray or white, i can't post a picture of the graph but entering most of the coordinates is accurate, but whenever i enter x=1 and y=1 or x=0 y=0 it shows gray even though it's completely white, i want to understand why it's not showing white. I think i have entered all the formulas correctly, there's a gray circle, gray triangle and a white cube in the middle of the triangle
    import java.util.Scanner;
     
    public class Main {
     
        public static void main(String[] args) {
            Scanner sc = new Scanner(System.in);
            System.out.println("241RDB125");
            System.out.println("16. variants");
     
            double x, y;
            System.out.print("x = ");
            x = sc.nextDouble();
            System.out.print("y = ");
            y = sc.nextDouble();
     
            System.out.println("Result:");
     
            boolean white1 = (x >= 6 && x <= 7 && y >= 4 && y <= 5);
            boolean grey1 = ((x - 3) * (x - 3) + (y - 3) * (y - 3) >= 4);
            boolean grey2 = (y <= 7 && x <= 8 && y <= x + 1);
     
            if (white1) {
                System.out.println("white");
            } else if (grey1 || grey2) {
                System.out.println("grey");
            } else {
                System.out.println("white");
            }
     
            sc.close();
        }
    }
    Last edited by Norm; Yesterday at 08:22 AM. Reason: Added code tags

  2. #2
    Super Moderator Norm's Avatar
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    Default Re: Beginner, need help with basic code

    Why do you think the output is incorrect? Can you post the equations with the values of the variables that shows what you expect?

    What are the rules to determine whether to show white or grey?
    If you don't understand my answer, don't ignore it, ask a question.

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