I have query in Hashing/Equal.java

[chaudharisuresh997]

Hi Varun
Thanks alot for sharing such clean and easy to understand solution,
Can you please explain what this sorting comparator class will be doing.
what purpose does it solve I hope i am not asking too much but if you could give line by line comment to the comparator class code that will be great.
I am refering to the below code.
class sort implements Comparator<ArrayList> {

@Override
public int compare(ArrayList<Integer> o1, ArrayList<Integer> o2) {
	int c = o1.get(0).compareTo(o2.get(0));
	if (c == 0) {
		c = o1.get(1).compareTo(o2.get(1));
	}
	if (c == 0) {
		c = o1.get(2).compareTo(o2.get(2));
	}
	if (c == 0) {
		c = o1.get(3).compareTo(o2.get(3));
	}
	
	return c;
}

}