Mit ír ki a következő program?

public class Main {
    public static void main(String[] args) {
        int[] t1 = new int[4];
        for (int i = 0; i < t1.length; ++i) {
            t1[i] = 10;
        }
        int[] t2 = new int[2];
        for (int i = 0; i < t2.length; ++i) {
            t2[i] = 20;
        }
        
        t1 = t2;
        for (int e : t1) {
            System.out.print(e + ",");
        }
    }
}