打印字符串反向

Question

我想写一个程序，用户输入＆＃34; asdfg＆＃34;程序应该打印＆＃34; gfdsa＆＃34;我怎样才能做到这一点？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

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);