What is JNA?
Java Native Access (JNA) is a community-developed library providing Java programs an easy access to native shared libraries (.dll files on windows, .so files on Unix ...)
How can I use it?
Firstly, download the latest release of JNA and reference its jna.jar in your project's CLA...
There are multiple ways of adding data to a object in fxml:
<property> tag
A tag with the name of a property can be added as child of an element used for creating a instance. The child of this tag is assigned to the property using the setter or added to the contents of the property (readonly...
Prior to Java 5's concurrent package introduction threading was more low level.The introduction of this package provided several higher level concurrent programming aids/constructs.
Locks are thread synchronisation mechanisms that essentially serve the same purpose as synchronized blocks or key wor...
Starting with the Support Library version 22.2.1, it's possible to show and hide a FloatingActionButton from scrolling behavior using a FloatingActionButton.Behavior sublclass that takes advantage of the show() and hide() methods.
Note that this only works with a CoordinatorLayout in conjunction wi...
In R, data objects are manipulated using named data structures. The names of the objects might be called "variables" although that term does not have a specific meaning in the official R documentation. R names are case sensitive and may contain alphanumeric characters(a-z,A-z,0-9), the dot...
#include <stdio.h>
#define SIZE (10)
int main()
{
size_t i = 0;
int *p = NULL;
int a[SIZE];
/* Setting up the values to be i*i */
for(i = 0; i < SIZE; ++i)
{
a[i] = i * i;
}
/* Reading the values using pointers */
for(p =...
You can define the signing configuration to sign the apk in the build.gradle file.
You can define:
storeFile : the keystore file
storePassword: the keystore password
keyAlias: a key alias name
keyPassword: A key alias password
You have to define the signingConfigs block to create a signin...
You can define the signing configuration in an external file as a signing.properties in the root directory of your project.
For example you can define these keys (you can use your favorite names):
STORE_FILE=myStoreFileLocation
STORE_PASSWORD=myStorePassword
KEY_ALIAS=myKeyAlias
KEY_PASSWOR...
You can store the signing information setting environment variables.
These values can be accessed with System.getenv("<VAR-NAME>")
In your build.gradle you can define:
signingConfigs {
release {
storeFile file(System.getenv("KEYSTORE"))
storePasswo...
Inserting elements is simple:
> let m = Map.singleton "Alex" 31
fromList [("Alex",31)]
> Map.insert "Bob" 99 m
fromList [("Alex",31),("Bob",99)]
The Data.Map module in the containers package provides a Map structure that has both strict and lazy implementations.
When using Data.Map, one usually imports it qualified to avoid clashes with functions already defined in Prelude:
import qualified Data.Map as Map
So we'd then prepend Map funct...
In Normal Mode, commands can be entered by direct key combinations (typing u to undo the last change, for example). These commands often have equivalents in 'ex' mode, accessed by typing a colon :, which drops you into a single-line buffer at the bottom of the Vim window.
In 'ex' mode, after typing...
SQLite has no separate data type for date or time values.
ISO8601 strings
The built-in keywords CURRENT_DATE, CURRENT_TIME, and CURRENT_TIMESTAMP return strings in ISO8601 format:
> SELECT CURRENT_DATE, CURRENT_TIME, CURRENT_TIMESTAMP;
CURRENT_DATE CURRENT_TIME CURRENT_TIMESTAMP
--------...
The static storage class specifier has three different meanings.
Gives internal linkage to a variable or function declared at namespace scope.
// internal function; can't be linked to
static double semiperimeter(double a, double b, double c) {
return (a + b + c)/2.0;
}
// exported to c...
This is very similar to using an Application subclass and overriding the attachBaseContext() method.
However, using this method, you don't need to override attachBaseContext() as this is already done in the MultiDexApplication superclass.
Extend MultiDexApplication instead of Application:
package...
Automapper can be installed from nuget running the following command in Package Manager Console:
Install-Package AutoMapper
Then it can be included in different files within the project it has been installed to by using directives:
using AutoMapper;
Unlike a parallel for-loop (parfor), which takes the iterations of a loop and distributes them among multiple threads, a single program, multiple data (spmd) statement takes a series of commands and distributes them to all the threads, so that each thread performs the command and stores the results....
