题解 | 数字颠倒
数字颠倒
https://www.nowcoder.com/practice/ae809795fca34687a48b172186e3dafe
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
int input = in.nextInt();
int temp;
StringBuffer buf = new StringBuffer();
if(input==0){
System.out.print(0);
}
while (input != 0) {
temp = input % 10;
buf.append((char)(temp + '0'));
input/=10;
}
for(char c:buf.toString().toCharArray()){
System.out.print(c);
}
}
}
