How to create an array from a large number of elements not manually?

Question

Java

There is a program that displays a large number of numbers on the screen. How can you create an array from these numbers so as not to manually enter each number?
This program displays numbers 1) less than 1000; 2) a multiple of three; 3) a multiple of five. From all these numbers, you need to create an array with type int .. Help, I can’t figure out how to do this

package javaapp1;
class JavaApp1 {
    
    
    public static void main(String args[]){                      
        int i;
        for(i =0; i<=1000; i++){
            if((i%3==0) & (i%5==0)){
            System.out.println(i);
           }
        }
    }

Answer 1

int[] a = new int[67];
for (int i = 0, n = 0; i <= 1000; i++) {
    if ((i % 3 == 0) && (i % 5 == 0)) {
        a[n++] = i;
    }
}