C语言程序设计教程（第三版）课后习题5.7 （Java代码）简化给我留言

解题思路:

注意事项:

参考代码:

import java.util.*;

public class Main{

public static void main(String[] args) {

Scanner sc=new Scanner(System.in);

int a=sc.nextInt();

String b=""+a;

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

char c[]=new char[b.length()];

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

c[i]=b.charAt(i);

System.out.print(c[i]+" ");

}

System.out.println();

StringBuilder Builder=new StringBuilder();

System.out.print(Builder.append(b).reverse());

}

 }