打印字符串反转

Question

我想写一个程序，当用户输入 "asdfg" 程序时应该打印 "gfdsa" 我该怎么做？我对此一无所知。

String s;
String rev;

Scanner sc = new Scanner (System.in);

System.out.println ("Enter 's' String : ");
s = sc.next();

System.out.println ("reverse of " + s + " equal to " + rev);

Answer 1

尝试

   System.out.println ("reverse of " + s + " equal to " + new StringBuilder(s).reverse().toString());

Answer 2

试试这个，它会起作用

        string input = "sample text";
        char[] outputArray = input.ToCharArray();           
        Array.Reverse(outputArray);
        Console.WriteLine(outputArray);

打印字符串反转

Printing String reverse

printing

string

reverse