comparator

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In Java, is a Comparator used in Collections.sort() thread safe?

If I create a single instance of a Comparator, can that instance be used across multiple threads to sort collections using Coll开发者_Python百科ections.sort()?Or, do I need to create a new instance of[详细]

2022-12-31 19:53 分类：问答
Why does the Java Collections Framework offer two different ways to sort?

If I have a list of elements I would like to sort, Java offers two ways to go about this. For example, lets say I have a list of Movie objects and I’d like to sort them by title.[详细]

2022-12-31 03:25 分类：问答
Passing a comparator syntax help in Java

I\'ve tried this a couple ways, the first is have a class that implements comparator at the bottom of the following code.When I try to pass the comparat in sortListByLastName, I get a constructor not[详细]

2022-12-30 14:53 分类：问答
Comparable and Comparator contract with regards to null

Comparable contract specifies that e.compareTo(null) must throw NullPointerException. From the API: Note that null is not an instance of any class, and e.compareTo(null) should throw a NullPointerE[详细]

2022-12-30 12:42 分类：问答
Is there a built-in way to compare IEnumerable<T> (by their elements)?

I would like to compare lists of elements of a given type, to see which list is \"big开发者_如何学Cger\".[详细]

2022-12-30 02:29 分类：问答
C++ string sort like a human being?

I would like to sort alphanumeric strings the way a human being would sort them. I.e., \"A2\" comes before \"A10\", and \"a\" certainly comes before \"Z\"! Is there any way to do with without writing[详细]

2022-12-29 16:49 分类：问答
C++ change sort method [duplicate]

This question already has answers here: Closed 12 years ago. Possible Duplicate: C++ struct sorting Is it possible to sort a vector in C++ according to a specified sorting method, l开发者[详细]

2022-12-28 11:42 分类：问答
What happens to my PriorityQueue if my Comparator throws an exception while it's busy bubbling up or down?

I\'m trying order pairs of integers ascendantly where a pair is considered less than another pair if both its entries are strictly less than those of the other pair, and larger than the other pair if[详细]

2022-12-26 00:19 分类：问答
I need to Split a string based on a complex delimiter

In C# I need to split a string (a log4j log file) into array elements based on a particular sequence of characters, namely \"nnnn-nn-nn nn:nn:nn INFO\".I\'m currently splitting this log file up by new[详细]

2022-12-25 00:16 分类：问答
List<> own comparer

I have a Listwhere element is: struct element { double priority; int value; } How can I implement my own comparer which all开发者_开发问答ow me sort List by priority ? I try with SortredList...[详细]

2022-12-23 20:43 分类：问答