C语言程序设计教程（第三版）课后习题11.3 （Java代码）

解题思路:





注意事项:





参考代码:

import java.util.Scanner;

public class Main {

        public static String[] input(){

                Scanner sc = new Scanner(System.in);

                int N = sc.nextInt();

                sc.nextLine();

                String[] array = new String[N];

                for(int i=0;i < N;i++){

                String str = sc.nextLine();

                str = str.replaceAll(" ", ",");

                array[i] = str;

                }

        return array;

        }

        public static void print(String[] array){

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

                System.out.println(array[i]);

                }

        }

        public static void main(String[] arg){

                print(input());

        }

}