import java.util.Scanner; public class Main{ public static void main(String []args){ Scanner sc = new Scanner(System.in); int num = sc.nextInt(); System.out.println(num); } }
这道题主要考察如何从键盘上读取数字,并打印,只要知道如何录入数字和打印这题就可以解出来。
import java.util.Scanner; public class Main{ public static void main(String []args){ Scanner sc = new Scanner(System.in); int num = sc.nextInt(); System.out.println(num); } }