返回在Java中作为反向文本输入的字符串

public class ReverseString {
    public static void main(String[] args) {
        String input = "Hello, world!";
        String reversed = reverseString(input);
        System.out.println("Reversed string: " + reversed);
    }

    public static String reverseString(String input) {
        StringBuilder sb = new StringBuilder(input);
        sb.reverse();
        return sb.toString();
    }
}