字符串输入输出函数 （Java代码）

解题思路:





注意事项:





参考代码:

import java.util.Scanner;

public class Main {

        public static void main(String[] arg){

                Scanner sc = new Scanner(System.in);

                System.out.print("please input a number:\n");

                double N = sc.nextDouble();

                sc.nextLine();

                System.out.print("please input a string:\n");

                String str = sc.nextLine();

                System.out.println(N+"\n"+str);

        }

}