Tutorial by Examples: ga

The other examples may be the best and most stable way to get a version number into an application statically. This answer proposes an alternative showing how to do it dynamically during runtime, using the maven maven-model library. Add the dependency: <dependency> <groupId>org.apac...

You can declare a UIFont as follows: var font: UIFont! UIFont has more init() methods: UIFont.init(descriptor: UIFontDescriptor, size: CGFloat) UIFont.init(name: String, size: CGFloat) Therefore, you can initialize a UIFont like this: let font = UIFont(name: "Helvetica Neue", s...

Add the hyperloop gem to your rails (4.0 - 5.1) Gemfile bundle install Add the hyperloop manifest to the application.js file: // app/assets/javascripts/application.js ... //= hyperloop-loader Create your react components, and place them in the hyperloop/components directory # app/hyperl...

A for loop iterate through items in an enumeration program EnumLoop; uses TypInfo; type TWeekdays = (Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday); var wd : TWeekdays; begin for wd in TWeekdays do WriteLn(GetEnumName(TypeInfo(TWeekdays), Ord(wd))); ...

Table/Column Names Two common ways of formatting table/column names are CamelCase and snake_case: SELECT FirstName, LastName FROM Employees WHERE Salary > 500; SELECT first_name, last_name FROM employees WHERE salary > 500; Names should describe what is stored in their object. Th...

def main(): if len(sys.argv) != 4 or '--help' in sys.argv[1:]: print('usage: my_program <arg1> <arg2> <arg3>', file=sys.stderr) sys.exit(1) # use an exit code to signal the program was unsuccessful process_data()

You must have 3.2 to be able to upgrade to 3.4. This example assumes you are using apt. sudo service mongod stop sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 0C49F3730359A14518585931BC711F9BA15703C6 echo "deb [ arch=amd64,arm64 ] http://repo.mongodb.org/apt/ubuntu xeni...

Suppose you had an array: pair = ['Jack','Jill'] And a method that takes two arguments: def print_pair (a, b) puts "#{a} and #{b} are a good couple!" end You might think you could just pass the array: print_pair(pair) # wrong number of arguments (1 for 2) (ArgumentError) Si...

The jar command can be used to create a multi-release Jar containing two versions of the same class compiled for both Java 8 and Java 9, albeit with a warning telling that the classes are identical: C:\Users\manouti>jar --create --file MR.jar -C sampleproject-base demo --release 9 -C sampleproje...

Table ORDERS +---------+------------+----------+-------+--------+ | orderid | customerid | customer | total | items | +---------+------------+----------+-------+--------+ | 1 | 1 | Bob | 1300 | 10 | | 2 | 3 | Fred | 500 | 2 | | 3 | ...

Parsing date is used when having an input typed as String and when it is needed to get it as a Date. The class TalendDate contains method TalendDate.parseDate("pattern","stringDate"). Pattern here is the input pattern, and not the expected output pattern. Usage : For an input...

#lang scribble/manual @; Make sure that code highlighting recognises identifiers from my-package: ꩜require[@for-label[my-package]] @; Indicate which module is exporting the identifiers documented here. @defmodule[my-package] @defproc[(my-procedure [arg1 number?] [arg2 string?]) symbol?]{ ...

Simple Codec Here to illustrate the working principle we can use simple encryption and decryption as follows. public static String encrypt(String input) { // Simple encryption, not very strong! return Base64.encodeToString(input.getBytes(), Base64.DEFAULT); } public static String dec...

Simple Codec Here to illustrate the working principle we can use simple encryption and decryption as follows. public static String encrypt(String input) { // Simple encryption, not very strong! return Base64.encodeToString(input.getBytes(), Base64.DEFAULT); } public static String dec...

This is project directory. A service endpoint interface First we will create a service endpoint interface. The javax.jws.WebService @WebService annotation defines the class as a web service endpoint. import javax.jws.WebMethod; import javax.jws.WebService; import javax.jws.soap.SOAPBi...

We have a Student table with SubjectId. Here the requirement is to concatenate based on subjectId. All SQL Server versions create table #yourstudent (subjectid int, studentname varchar(10)) insert into #yourstudent (subjectid, studentname) values ( 1 ,'Mary' ) ,( 1 ,'John' ...

In case of SQL Server 2017 or vnext we can use in-built STRING_AGG for this aggregation. For same student table, create table #yourstudent (subjectid int, studentname varchar(10)) insert into #yourstudent (subjectid, studentname) values ( 1 ,'Mary' ) ,( 1 ,'John' ) ,( 1 ...

You need to include the Pagination.php in your page/s. require_once 'Paginator.php'; $Paginator = new Paginator('mysql:host=localhost;dbname=ng_app', 'root', '000000'); $Paginator->setItemLimitPerPage(4); $Paginator->setTable('comments'); $Paginator->createPages(); // this will creat...

public class JSEngine { /* * Note Nashorn is only available for Java-8 onwards * You can use rhino from ScriptEngineManager.getEngineByName("js"); */ ScriptEngine engine; ScriptContext context; public Bindings scope; // Initialize t...

Gradle Setup : build.gradle(Module: app) compileOptions { sourceCompatibility JavaVersion.VERSION_1_8 targetCompatibility JavaVersion.VERSION_1_8 } jackOptions { enabled true } What is the Stream API ? Stream is a new abstract layer introdu...