Question

First, ask the user for a positive integer called “length”. If the user does not provide an integer, or if the integer is not positive, then ask again, by asking inside a while loop.

The acceptable integer is intended to indicate the user’s desired twist length. A twist is always three lines long, and made of slash characters and X characters. For example, if length is 25, then your code should print out this:

Simple output: IXI XI XI XI XI XI XI XI To complete the code, figure out the repeating patterns on each line, and print out the twist. Save your java code in Twist.java.

Answer 1

import java.util.InputMismatchException;
import java.util.Scanner;

class Twist{

    public static void main (String... s){

        Scanner sc = new Scanner(System.in);
        int number = -1;      
        while (number <= 0){
            try{
                String promptMsg = "Enter an integer (positive): ";
                System.out.println(promptMsg);
                number = sc.nextInt();
            }catch(InputMismatchException e) {
                System.out.println("Input is not valid");
                sc.next();
            }
        }

        int quotient = number/3;
        System.out.println(quotient);

        draw(quotient);
    }

    public static void draw(int q){
       for (int i = 0; i < q; i++) {
           System.out.print("\\ /");
       }
       System.out.println("\\");
       for (int i = 0; i < q; i++) {
           System.out.print(" x ");
       }
       System.out.println();
       for (int i = 0; i < q; i++) {
           System.out.print("/ \\");
       }
       System.out.println("/");
    }
}