comparator

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Java Serialization Comparator

Is it possible to serialize a TreeMap with a comparator?? 开发者_运维百科I\'ve tested and it serializes well a treemap without comparator, when you add the comparator, it throws an exception.[详细]

2022-12-13 20:20 分类：问答
Can I use a Comparator without implementing Comparable?

Is it possible to use a Comparator without implementing开发者_运维百科 the Comparable class? For instance, if I had the following:[详细]

2022-12-13 07:14 分类：问答
Java Collections.sort - help me remove the unchecked warning

List<Question> questions = new ArrayList<Question>(); quest开发者_运维百科ions.addAll(getAllQuestions()); //returns a set of Questions[详细]

2022-12-12 18:19 分类：问答
Java TreeMap (comparator) and get method ignoring the comparator

public final Comparator<String> ID_IGN_CASE_COMP = new Comparator<String>() { public int compare(String s1, String s2) {[详细]

2022-12-12 11:34 分类：问答
How do I sort enum members alphabetically in Java?

I have an enum class like the following: public enum Letter { OMEGA_LETTER(\"Omega\"), GAMMA_LETTER(\"Gamma\"),[详细]

2022-12-11 05:33 分类：问答
Java, how to add a "comparator" class to increase code reusability

Preface: I\'m posting this on behalf of a friend (who\'s apparently to shy to post it himself), I browsed throu开发者_Go百科gh the related questions and I didn\'t seem to find any duplicate.. But do n[详细]

2022-12-10 05:48 分类：问答
How can I compare null values using Comparator?

I\'ve got a few Comparators -- one for Dates, one for decimals, one for percentages, etc. At first my decimal comparator looked like this:[详细]

2022-12-10 04:10 分类：问答
STL Priority Queue on custom class

I\'m having a lot of trouble getting my priority queue to recognize which parameter it should sort by. I\'ve overloaded the less than operator in my custom class but it doesn\'t seem to use it. Here\'[详细]

2022-12-08 16:19 分类：问答
Java: Trouble with TreeSet and LinkedList

I have an unsorted linked list. To sort it, I thought I\'d put the values into a TreeSet with a comparator supplied, then return those values as a new linked list. Yet, it fails.[详细]

2022-12-08 02:09 分类：问答