C语言程序设计教程（第三版）课后习题5.7 （Java代码）

解题思路:





注意事项:





参考代码:

import java.util.Scanner;

public class C1009 {

public static void main(String[] args) {

Scanner sc = new Scanner(System.in);

while (sc.hasNext()) {

String n = sc.next();

char[] c = n.toCharArray();

System.out.println(n.length());

for(int i = 0; i < n.length(); i++){

System.out.printf("%s ", c[i]);

}

System.out.println();

for(int i = n.length()-1; i >= 0; i--){

System.out.printf("%s", c[i]);

}

}

sc.close();

}

}