Como faço para colocar restrição de cogido em java?

package initialProjects;

import java.util.Scanner;

    public class Java_Test {

    public static void main(String [] args) {

        Scanner test1 = new Scanner(System.in);
        String p1;

            System.out.println ("Hey, mom. Give me $15,00 ?");
            p1 = test1.nextLine();

                while (p1.equals("No way")) {
                    System.out.println ("");
                    System.out.println ("Aff, mom. Don't be a penny-pincher. Come on, it's only 15,00 bucks cause I'd wanna go out with my friends to take an ice cream ;D");
                    p1 = test1.nextLine();
                }

                System.out.println ("");
                System.out.println ("Thanks, mom! You're the best! haha... Kisses >3");    

        }

    }