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How to quickly and conveniently create a one element arraylist [duplicate]
... for example add elements to this List, it will throw an UnsupportedOperationException!
– Adamsan
Aug 28 '14 at 9:33
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Injecting $scope into an angular service function()
...s, other services etc).
I am sure, various approaches would work for you. One is this:
Since the StudentService is in charge of dealing with student data, you can have the StudentService keep an array of students and let it "share" it with whoever might be interested (e.g. your $scope). This makes ...
How can I remove duplicate rows?
...qlinthewild.co.za/index.php/2010/03/23/… Two SELECTs then were produced, one using the LEFT JOIN + WHERE IS NULL technique, the other using the NOT IN one. Then I proceeded with the execution plans, and guess what? The query costs were 18% for LEFT JOIN against 82% for NOT IN, a big surprise to me...
Copy files from one directory into an existing directory
...lly like this syntax, but for some reason it doesn't work with mv. Does anyone know why?
– Martin von Wittich
Sep 16 '13 at 11:18
2
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How to update a value, given a key in a hashmap?
...ng function, which will be called to compute a new value based on existing one.
For example,
Map<String, Integer> words = new HashMap<>();
words.put("hello", 3);
words.put("world", 4);
words.computeIfPresent("hello", (k, v) -> v + 1);
System.out.println(words.get("hello"));
Altern...
Drop multiple tables in one shot in mysql
How to drop multiple tables from one single database at one command.
something like,
4 Answers
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Why use ICollection and not IEnumerable or List on many-many/one-many relationships?
...exts, that type will yield slightly better performance than would a standalone heap object. Compilers which duck-type enumerators (as both C# and vb.net do) can take advantage of this when generating foreach code. If the List<T> is cast to IEnumrable<T> before the foreach, the IEnumera...
Trust Anchor not found for Android SSL Connection
... This is ok for working with a self-generated cert, but for one (like the OP's) which has a valid chain back to the root CA's it is just a workaround for a badly configured server - see my answer.
– Stevie
Apr 30 '13 at 14:43
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Good Java graph algorithm library? [closed]
Has anyone had good experiences with any Java libraries for Graph algorithms. I've tried JGraph and found it ok, and there are a lot of different ones in google. Are there any that people are actually using successfully in production code or would recommend?
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What's the best practice for putting multiple projects in a git repository? [closed]
As some reason, I only have one repository to use.
But I have multiple projects including java projects, php scripts and Android apps projects.
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