用戶，它由向後寫姓氏，接着是明星，年齡，那麼星創建密碼，然後名字寫向後

Question

公共靜態無效的主要（字串[] 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(); 

}

我是否爲surnameBackwards創建了另一個變量？

Answer 1

事情是這樣的：

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