将输入的字符串逆序输出

import java.util.Scanner;
public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		String st = sc.nextLine();
		char chars[] = st.toCharArray();//将字符串转换为字符串数组
		for(int i=chars.length-1;i>=0;i--) {
			System.out.print(chars[i]);
		}
	}
}