Znak Stop

import java.util.Scanner;

public class ZnakStop {

    public static void main(String[] args) {

        Scanner scanner = new Scanner(System.in);

        System.out.print("Input diameter of the sign: ");
        int a = Integer.parseInt(scanner.nextLine());
        scanner.close();
        int k1, k2, k3, k4;
        k1 = k2 = k3 = k4 = 0;
        int j1, j2, j3, j4, t1, t2, t3, t4, b1, b2, b3, b4;
        j1 = j2 = j3 = j4 = t1 = t2 = t3 = t4 = b1 = b2 = b3 = b4 = a;

        if (k1 < 1) {
            System.out.print("  ");
            k1++;
            while (j1 > 1) {
                System.out.print(" ");
                j1--;
            }
            System.out.print("_____");
            while (j1 + a > 2) {
                System.out.print("__");
                j1--;
            }
        }
        System.out.println();
        if (k2 < 1) {
            System.out.print(" ");
            k2++;
            while (j2 > 1) {
                System.out.print(" ");
                j2--;
            }
            System.out.print("/");
            System.out.print("     ");
            while (j2 + a > 2) {
                System.out.print("  ");
                j2--;
            }
            System.out.println("\\");
        }

        for (int i = 1 ; i < a; i++) {
            t2 = t1;
            t4 = t3;
            System.out.print(" ");
            while (t2 > 2) {
                System.out.print(" ");
                t2--;
            }
            System.out.print("/");
            System.out.print("     ");
            while (t4 > 0) {
                System.out.print("  ");
                t4--;
            }
            System.out.println("\\");
            t1--;
            t3++;
        }

        if (k3 < 1) {
            System.out.print("| ");
            k3++;
            while (j3 > 1) {
                System.out.print("  ");
                j3--;

            }
            System.out.print("STOP!");
            while (j3 + a > 2) {
                System.out.print("  ");
                j3--;
            }
            System.out.println(" |");
        }
        for (int i = 1 ; i < a; i++) {
            b2 = b1;
            b4 = b3;
            System.out.print(" ");
            while (b2 > a) {
                System.out.print(" ");
                b2--;
            }
            System.out.print("\\");
            System.out.print(" ");
            while (b4 + a > 0) {
                System.out.print("  ");
                b4--;
            }
            System.out.println("/");
            b1++;
            b3--;
        }

        if (k4 < 1) {
            System.out.print(" ");
            k4++;
            while (j4 > 1) {
                System.out.print(" ");
                j4--;
            }
            System.out.print("\\");
            System.out.print("_____");
            while (j4 + a > 2) {
                System.out.print("__");
                j4--;
            }
            System.out.println("/");
        }
    }
}