Please teach me how to insert the result values into the array

import java.util.Scanner;

public class test1 {



    public static void main(String[] args) {

        Scanner sc = new Scanner(System.in);        
        System.out.println ("Enter Numbers");


        int num = sc.nextInt();
        int cnt = 0;
        String[] gugu = new String[cnt];

        if(num > 1){
            for(int i=2 ; i<10 ; i++){
                for(int j=1 ; j<10 ; j++){
                    if(num == i*j){

                        cnt++;
                        System.out.println(i + "x" + j + "=" + i*j);

                    }                   
                }
            }
        }   
    }
}