题解 | #字符串反转#
字符串反转
https://www.nowcoder.com/practice/e45e078701ab4e4cb49393ae30f1bb04
import java.util.Scanner; // 注意类名必须为 Main, 不要有任何 package xxx 信息 public class Main { public static void main(String[] args) { Scanner in = new Scanner(System.in); // 注意 hasNext 和 hasNextLine 的区别 while (in.hasNext()) { // 注意 while 处理多个 case String a = in.next(); char[] c = a.toCharArray(); int i =0 ,j=c.length-1; while (i<j){ char temp = c[j]; c[j]= c[i]; c[i] =temp; i++; j--; } String cc = new String(c); System.out.print(cc); // for(char c1:c){ // System.out.print(c); // } } } }