[HJ12] 字符串反转
/**
* @auther: 巨未
* @DATE: 2021/8/30 0030 15:41
* @Description:
*/
import java.util.Scanner;
public class Main{
public static String rev(String str, int start, int end ){
char[] chars = str.toCharArray();
while (start < end) {
char tmp = chars[start];
chars[start] = chars[end];
chars[end] = tmp;
start++;
end--;
}
return String.copyValueOf(chars);
}
public static void main(String[] args) {
Scanner s = new Scanner(System.in);
String str = s.nextLine();
System.out.println(rev(str,0,str.length()-1));
}
}