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dynamically add and remove view to viewpager
...ate static final int DATABASE_VERSION = 1;
private static final String TABLE_NAME = "diary";
private static final String TITLE = "id";
private static final String BODY = "content";
DBHelper dbHelper = new DBHelper(this);
ArrayList<String> frags = new ArrayList<String>...
Heap vs Binary Search Tree (BST)
...log(n) n
Delete worst log(n) log(n)
All average times on this table are the same as their worst times except for Insert.
*: everywhere in this answer, BST == Balanced BST, since unbalanced sucks asymptotically
**: using a trivial modification explained in this answer
***: log(n) for p...
Hash collision in git
...wice. But "surprisingly few" is a very relative term here.
Wikipedia has a table on the probability of Birthday Paradox collisions. There is no entry for a 40 character hash. But an interpolation of the entries for 32 and 48 characters lands us in the range of 5*1022 git commits for a 0.1% probabil...
How useful/important is REST HATEOAS ( maturity level 3)?
...e client development schedule. Abrupt changes to the API are simply unacceptable to everyone involved, as it disrupts traffic and operations on both sides.
So, an operation like that would very likely benefit from HATEOAS, as it's easier to version, easier for older clients to migrate, easier to be...
Java 256-bit AES Password-Based Encryption
...putStream is not much of a problem. Shuffling all the exceptions under the table is a problem. The fact that the salt suddenly has become a field and that the IV is required is a problem. The fact that it doesn't follow Java coding conventions is a problem. And the fact that this only works on files...
How to write WinForms code that auto-scales to system font and dpi settings?
...f you are not using Dock
modes or a Layout Manager like FlowLayoutPanel or TableLayoutPanel.
Base classes derived from ContainerControl should leave AutoScaleMode set to Inherit (the default value set in class ContainerControl; but NOT the default set by the designer). If you set it to anything else...
static const vs #define
... The pro and cons are mixed up, I would be very like to see a comparison table.
– Unknown123
Apr 25 '19 at 3:49
...
How do I break a string over multiple lines?
... "this is my very very \"very\" long string, isn't it."
Summary
In this table, _ means space character. \n means "newline character" (\n in JavaScript), except for the "in-line newlines" row, where it means literally a backslash and an n).
> | " ' &...
How to design a multi-user ajax web application to be concurrently safe
...tes requests, one per second, 5 per second, whatever you regard as an acceptable latency. This can be rather cruel to your infrastructure if you do not configure your (Apache?) and (php?) well enough to be "lightweight" starters. It is desirable to optimize the polling request on the serverside so t...
What's the use of Jade or Handlebars when writing AngularJs apps
...ity.
Aside from template extension, Jade brings nothing worthwhile to the table that Angular doesn't already supply. Let's be honest: Using the sound principle of "favour composition over inheritance" (i.e. partials), you shouldn't ever need template extensibility. Jade is hardly "easier to parse" ...