EvenFibonacciNumbers.java

import java.util.ArrayList;


public class EvenFibonacciNumbers {

    public static void main(String[] args) {
        
        ArrayList<Integer> liste = new ArrayList<>();
        
        // 1, 1, 2, 3, 5, 8 ...
        
        int second_prev_numb = 1;
        int first_prev_numb = 1;
        
        for(int i = 0; i < 100; i++)
        {
            int newNumb = second_prev_numb + first_prev_numb;
            
            second_prev_numb = first_prev_numb;
            first_prev_numb = newNumb;
            
            if(newNumb % 2 == 0)
                liste.add(newNumb);
            
        }
        
        System.out.println(liste);
        
    }
}