Main.java Source code

Introduction

Here is the source code for Main.java

Source

import java.util.Arrays;
import java.util.Comparator;
import java.util.List;
import java.util.Set;
import java.util.TreeSet;

public class Main {
    public static void main(final String[] args) {
        sortDates(Arrays.asList(new DAY[] { DAY.MON, DAY.WED, DAY.TUE, DAY.THU, DAY.SUN, DAY.SAT, DAY.FRI }));
    }

    public static void sortDates(final List<DAY> dayList) {
        final Set<DAY> set = new TreeSet<DAY>();
        set.addAll(dayList);
        for (final DAY day : set) {
            System.out.println(day);
        }
    }
}

enum DAY implements Comparable<DAY> {
    MON("MONDAY", 1), TUE("TUESDAY", 2), WED("WEDNESDAY", 3), THU("THURSDAY", 4), FRI("FRIDAY", 5), SAT("SATURDAY",
            6), SUN("SUNDAY", 0);

    private String name;
    private int index;

    DAY(String name, int index) {
        name = name;
        index = index;
    }

    public String getName() {
        return name;
    }

    public int getIndex() {
        return index;
    }
}

class DAYComparator implements Comparator<DAY> {

    @Override
    public int compare(final DAY o1, final DAY o2) {
        int returnValue = 0;
        if (o1.getIndex() > o2.getIndex()) {
            returnValue = 1;
        } else if (o1.getIndex() < o2.getIndex()) {
            returnValue = -1;
        }
        return returnValue;
    }
}