为用户创建密码，包括向后写的姓氏，然后是星号，年龄，然后是星号，然后是向后写的名字

Question

public static void main（String [] args）     {

    String firstName = "";
    double age =0;    
    String surname ="";
    String password ="";

   Scanner scan = new Scanner (System.in);

   System.out.println("Please enter your first name:");
   firstName= scan.nextLine();

   System.out.println("Please enter your age:");
   age=scan.nextDouble();

   System.out.println("Please enter your surname:");
   surname= scan.nextLine();

   System.out.println("Please enter your password:");
   password=scan.nextLine();

}

我是否为surnameBackwards创建另一个变量？

Answer 1

这样的事情：

String surnameBackwards = StringUtils.reverse(surname) + "*" + age + "*" + StringUtils.reverse(firstName)