Answer:
import java.util.Scanner; public class MultiplesOfSeven { public static void main(String[] args){ int j = 0; Scanner scan = new Scanner(System.in); int n = scan.nextInt(); for(j = 1; j <= n; j++){ if(j % 7 == 0){ System.out.print(j + " "); for (int counter = 0 ; counter < n ; counter++) { System.out.print(j*(2 +