JavaTpoint
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Question 1: interface Animal { void makeNoise(); }
class Horse implements Animal {
Long weight = 1200L;
public void makeNoise() { System.out.println("whinny"); }
}
public class Icelandic extends Horse {
public void makeNoise() { System.out.println("vinny"); }
public static void main(String[] args) {
Icelandic i1 = new Icelandic();
Icelandic i2 = new Icelandic();
Icelandic i3 = new Icelandic();
i3 = i1; i1 = i2; i2 = null; i3 = i1;
}
}

When line 14 is reached, how many objects are eligible for the garbage collector?
1. 1
2. 2
3. 3
4. 4