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How can I initialize an ArrayList with all zeroes in Java?
...os where nCopies is useful with reference types: Immutable objects such as strings, null-object patterns, enum constants, ... Anyway, I updated the answer with a solution for creating 60 different objects.
– aioobe
Mar 2 '15 at 18:04
...
What is the difference between declarative and imperative programming? [closed]
...eclarative programming is to invent new domain specific languages (DSL):
String Search: Regular Expression instead of custom imperative code
React.js: JSX instead of direct DOM manipulation
AWS CloudFormation: YAML instead of CLI
Relational Database: SQL instead of older read–write APIs such as ...
Animate the transition between fragments
...oid replaceFragmentWithAnimation(android.support.v4.app.Fragment fragment, String tag){
FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
transaction.setCustomAnimations(R.anim.enter_from_left, R.anim.exit_to_right, R.anim.enter_from_right, R.anim.exit_to_left...
Showing a different background colour in Vim past 80 characters
... out what that length is. Also, vim parses the value of this setting as a string every time it enters a window, initializes a buffer, etc, so this is kind of an expensive way of achieving the desired result.
– cptstubing06
Mar 8 '13 at 4:08
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Is it possible only to declare a variable without assigning any value in Python?
...duced the notion of type comments to annotate variables:
# 'captain' is a string (Note: initial value is a problem)
captain = ... # type: str
PEP 526 aims at adding syntax to Python for annotating the types of variables (including class variables and instance variables), instead of expressing th...
Explanation of JSONB introduced by PostgreSQL
... spec).
F.ex. these are valid JSON representations: null, true, [1,false,"string",{"foo":"bar"}], {"foo":"bar","baz":[null]} - hstore is just a little subset compared to what JSON is capable (but if you only need this subset, it's fine).
The only difference between json & jsonb is their storag...
Fullscreen Activity in Android?
...t.xml file:
<activity android:name=".ActivityName"
android:label="@string/app_name"
android:theme="@android:style/Theme.NoTitleBar.Fullscreen"/>
Edit:
If you are using AppCompatActivity then you need to add new theme
<style name="Theme.AppCompat.Light.NoActionBar.FullScreen" pa...
How to force a WPF binding to refresh?
... a big fan of using nameof(YourCollectionProperty) as opposed to a literal string. This prevents bugs from refactoring and is more explicit what is actually intended. This is of course where you can't use the CallerMemberName attribute which is even nicer
– Assimilater
...
Working with select using AngularJS's ng-options
...the label for <option> element. In that case you can perform certain string concatenations, in order to have more complex option labels.
Examples:
ng-options="item.ID as item.Title + ' - ' + item.ID for item in items" gives you labels like Title - ID
ng-options="item.ID as item.Title + ' ('...
Base64: What is the worst possible increase in space usage?
If a server received a base64 string and wanted to check it's length before converting,, say it wanted to always permit the final byte array to be 16KB. How big could a 16KB byte array possibly become when converted to a Base64 string (assuming one byte per character)?
...