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How to sort List of objects by some property

... Either make ActiveAlarm implement Comparable<ActiveAlarm> or implement Comparator<ActiveAlarm> in a separate class. Then call: Collections.sort(list); or Collections.sort(list, comparator); In general, it's a good idea to implement Comparable<T&...
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Numpy index slice without losing dimension information

... It's probably easiest to do x[None, 10, :] or equivalently (but more readable) x[np.newaxis, 10, :]. As far as why it's not the default, personally, I find that constantly having arrays with singleton dimensions gets annoying very ...
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Should I implement __ne__ in terms of __eq__ in Python?

...It seems to make sense that I should override the __ne__ method as well, but does it make sense to implement __ne__ in terms of __eq__ as such? ...
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Java Generics: Cannot cast List to List? [duplicate]

Just come across with this problem: 10 Answers 10 ...
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How to check for a JSON response using RSpec?

... You can examine the response object and verify that it contains the expected value: @expected = { :flashcard => @flashcard, :lesson => @lesson, :success => true }.to_json get :action # replace with action name / ...
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Case-insensitive string comparison in C++ [closed]

What is the best way of doing case-insensitive string comparison in C++ without transforming a string to all uppercase or all lowercase? ...
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Difference between partition key, composite key and clustering key in Cassandra?

I have been reading articles around the net to understand the differences between the following key types. But it just seems hard for me to grasp. Examples will definitely help make understanding better. ...
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How to get the list of files in a directory in a shell script?

... edited Apr 4 '12 at 8:10 l0b0 45.4k1919 gold badges106106 silver badges174174 bronze badges answered Mar 13 '10 at 6:08 ...
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Kotlin: how to pass a function as parameter to another?

... Use :: to signify a function reference, and then: fun foo(m: String, bar: (m: String) -> Unit) { bar(m) } // my function to pass into the other fun buz(m: String) { println("another message: $m") } // someone passing buz into foo fun something() { foo("hi", ::buz) } Since Ko...
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Difference between float and decimal data type

... This is what I found when I had this doubt. mysql> create table numbers (a decimal(10,2), b float); mysql> insert into numbers values (100, 100); mysql> select @a := (a/3), @b := (b/3), @a * 3, @b * 3 from numbers \G *************************** 1. row ***...