Mar 9, 2011 · Here it is not sort by alphabetic order. I want to use my custom sorting order like Red car come first, then Blue, etc. For that I try to use Java Comparator and Comparable but it allows to sort …

I need to sort an array of ints using a custom comparator, but Java's library doesn't provide a sort function for ints with comparators (comparators can be used only with objects). Is there any eas...

Oct 1, 2020 · TreeMap supports a custom Comparator in its constructor. Just implement the Comparator interface and pass it to the constructor.

Jan 17, 2021 · I created a custom comparator which sorts the number of wins in descending order but im not sure how this works, can anyone explain me how this sorts according to descending order? …

Aug 11, 2017 · 0 There is a PriorityQueue class in java.util. You can use that and it will either use natural ordering (Node implements Comparable) or a comparator supplied in the constructor (if you don't …

With the use of Comparator you can write custom sorting logic outside the Person class. If you want to compare Person objects only by its first name or last name, you cant use this logic.

Dec 20, 2016 · Yes it is possible to compare two objects based on different sort sequences using Comparator interface compare method. You need to create a sort sequence class.

May 7, 2010 · 1295 I read about sorting ArrayLists using a Comparator but in all of the examples people used compareTo which according to some research is a method for Strings. I wanted to sort an …

Comparator.naturalOrder() sorts the list in alphabetical order, but how can I combine this comperator with a custom one which checks whether the word is just or something else.

Feb 4, 2019 · How to write a custom Comparator for TreeMap in Java? Asked 6 years, 10 months ago Modified 1 year, 8 months ago Viewed 26k times