package MyCollection1;

import java.util.ArrayList;
//import java.util.Collection;
import java.util.Collections;
import java.util.Comparator;
import java.util.TreeSet;

public class Test2 {
	public static void main(String[] args) {
		Comparator<Customer> myCmp = new Comparator<Customer>() {
			@Override
			public int compare(Customer o1, Customer o2) {
				if (o1.getPostcode() != o2.getPostcode()) {
					return o1.getPostcode() - o2.getPostcode();
				}
				// now postcodes are same ..
				return o1.getRewardsPoints() - o2.getRewardsPoints();
			}
		};

		TreeSet<Customer> set = new TreeSet<>();
		set.add(new Customer("John", 12500, 2060));
		set.add(new Customer("Emma", 45900, 2200));
		set.add(new Customer("Peter", 700, 2060));
		set.add(new Customer("Kylie", 110200, 2075));

		ArrayList<Customer> custA = new ArrayList<Customer>(set);

		for (Customer c : custA) {
			System.out.println(c);
		}
		custA.sort(myCmp);
		System.out.println(" ======================== ");
		for (Customer c : custA) {
			System.out.println(c);
		}
		Collections.sort(custA, myCmp);
	}
}