Tutorial by Examples: bas

A pattern rule is indicated by a single % character in the target. The % matches a non-empty string called the stem. The stem is then substituted for every % that appears in the prerequisite list. For example, this rule: %.o: %.c $(CC) $(CFLAGS) -c $< -o $@ Will match any target ending ...

In Java, any object or primitive type can be an array. Array indicies are accessed via arrayName[index], e.g. myArray[0]. Values in an array are set via myArray[0] = value, e.g. if myArray is an array of type String[] myArray[0] = "test"; public class CreateBasicArray{ public static ...

public class CreateAnArray{ public static void main(String[] args){ // Creates a new array of Strings with a length of 3 // This length cannot be changed later String[] myStringArray = new String[3]; myStringArray[0] = "Hello"; // Java array ind...

HTML DOM is Expensive Each web page is represented internally as a tree of objects. This representation is called Document Object Model. Moreover, it is a language-neutral interface that allows programming languages (such as JavaScript) to access the HTML elements. In other words The HTML DOM...

Add Firebase to Your Android Project Add Firebase to your app To add Firebase to your app you'll need a Firebase project and a Firebase configuration file for your app. Create a Firebase project in the Firebase console, if you don't already have one. If you already have an existing Google proje...

Create a new JobService This is done by extending the JobService class and implementing/overriding the required methods onStartJob() and onStopJob(). public class MyJobService extends JobService { final String TAG = getClass().getSimpleName(); @Override public boolean onStart...

Define the variables within a formula field: Shared NumberVar x := 1000; Shared NumberVar y; Assigning the values is optional. To display the variable in a second formula later on in the report, the call is nearly identical: Shared NumberVar x; x

// Basic code for Express Instance var express = require('express'); var app = express(); // Serve static files from directory 'public' app.use(express.static('public')); // Start Express server app.listen(3030);

This is a simple trigger function. CREATE OR REPLACE FUNCTION my_simple_trigger_function() RETURNS trigger AS $BODY$ BEGIN -- TG_TABLE_NAME :name of the table that caused the trigger invocation IF (TG_TABLE_NAME = 'users') THEN --TG_OP : operation the trigger was fired IF (TG_O...

When you try to restore database from another server you might get the following error: Error 3154: The backup set holds a backup of a database other than the existing database. In that case you should use WITH REPLACE option to replace database with the database from backup: RESTORE DATABAS...

The Same Database reference allows you to split a single database into multiple projects. This is useful for cases where a project is very large or where different teams manage different parts of the database. If you consider that you have two .sqlproj SSDT database projects with the following stru...

The matplotlib.animation package offer some classes for creating animations. FuncAnimation creates animations by repeatedly calling a function. Here we use a function animate() that changes the coordinates of a point on the graph of a sine function. import numpy as np import matplotlib.pyplot as p...

This example uses the map format introduced in Erlang/OTP 18.0. %% A module implementing a supervisor usually has a name ending with `_sup`. -module(my_sup). -behaviour(supervisor). %% API exports -export([start_link/0]). %% Behaviour exports -export([init/1]). start_link() -> ...

The export tool exports a set of files from HDFS back to an RDBMS. The target table must already exist in the database. The input files are read and parsed into a set of records according to the user-specified delimiters. Example : sqoop export \ --connect="jdbc:<databaseconnector>&quo...

Jersey (2) uses HK2 as its dependency injection (DI) system. We can use other injection systems, but its infrastructure is built with HK2, and allows us to also use it within our applications. Setting up simple dependency injection with Jersey takes just a few lines of code. Let say for example we ...

The pandas.DataFrame.apply() method is used to apply a given function to an entire DataFrame --- for example, computing the square root of every entry of a given DataFrame or summing across each row of a DataFrame to return a Series. The below is a basic example of usage of this function: # create...

Framebuffer is a type of buffer which stores color values, depth and stencil information of pixels in memory. When you draw something in OpenGL the output is stored in the default framebuffer and then you actually see the color values of this buffer on screen. You can also make your own framebuffer ...

This Example assumes you setup as explained in Example: Setting Up Environment for aurelia-cli Explained of this document. Creating a new project In main host os, open terminal (Mac OS in my case) $cd /path/to/project/vagrant $vagrant up (Launches VM GUI) Log into VM via UI U...

Create a new SSDT project Import 3rd party DB Build project to create a dacpac Reference dacpac in other projects

Password Based Key Derivation can be used both for deriving an encryption key from password text and saving a password for authentication purposes. There are several hash algorithms that can be used including SHA1, SHA256, SHA512 which are provided by this example code. The rounds parameter is use...