Tutorial by Examples: io

File: /etc/hosts contains a list of hosts that are to be resolved locally(not by DNS) Sample contents of the file: 127.0.0.1 your-node-name.your-domain.com localhost.localdomain localhost XXX.XXX.XXX.XXX node-name The file format for the hosts file is specified by RFC 952

File: /etc/resolv.conf contains a list of DNS servers for domain name resolution Sample contents of the file: nameserver 8.8.8.8 # IP address of the primary name server nameserver 8.8.4.4 # IP address of the secondary name server In case internal DNS server you can validate if this server reso...

Install Python, go into the command line and type: Python 2: pip install pyglet Python 3: pip3 install pyglet

When you develop a C++ program, the next step is to compile the program before running it. The compilation is the process which converts the program written in human readable language like C, C++ etc into a machine code, directly understood by the Central Processing Unit. For example, if you have a...

Detailed instructions on getting vert.x set up or installed.

While using laravel pagination you are free to use your own custom views.So,when calling the links method on a paginator instance, pass the view name as the first argument to the method like : {{ $paginator->links('view.name') }} or You can customize the pagination views is by exporting the...

Hazelcast runs inside a Java Virtual Machine (JVM). It is compatible with Java versions 1.6.x, 1.7.x, and 1.8.x. Installation and setup is as simple as downloading the zip (or tar) archive, copying the uncompressed directory to a desired installation directory, and adding the jar to your Java clas...

This example illustrates the basics of executing sections of code in parallel. As OpenMP is a built-in compiler feature, it works on any supported compilers without including any libraries. You may wish to include omp.h if you want to use any of the openMP API features. Sample Code std::cout <...

This example shows how to execute chunks of code in parallel std::cout << "begin "; // Start of parallel sections #pragma omp parallel sections { // Execute these sections in parallel #pragma omp section { ... do something ... std::cout <...

This example illustrates a concept to perform reduction or gathering using std::vector and OpenMP. Supposed we have a scenario where we want multiple threads to help us generate a bunch of stuff, int is used here for simplicity and can be replaced with other data types. This is particularly useful...

//create a new ExcelPackage using (ExcelPackage excelPackage = new ExcelPackage()) { //create a WorkSheet ExcelWorksheet worksheet = excelPackage.Workbook.Worksheets.Add("Sheet 1"); //create a new list with books List<Book> books = new List<Book>(); ...

If you use formulas, Excel will ask you to save the file every time, even if there were no changes made. To prevent this behaviour you can set the calculation mode to manual. excelPackage.Workbook.CalcMode = ExcelCalcMode.Manual; //fill the sheet with data and set the formulas excelPackage....

Dim oDic Set oDic = CreateObject("Scripting.Dictionary") oDic.Add "US", "United States of America" oDic.Add "UK", "United Kingdom"

If oDic.Exists("US") Then msgbox "The Key US Exist. The value is " + oDic("US") Else msgbox "Key Does not exist." End If

If oDic.Exists("UK") Then oDic.remove("UK") End If

Declare two receivers in a manifest file: <receiver android:name=".UVMateWidget" android:label="UVMate Widget 1x1"> <intent-filter> <action android:name="android.appwidget.action.APPWIDGET_UPDATE" /> </intent-filter...

Create a sample table on a sample database CREATE TABLE [dbo].[Table_1]( [Id] [int] IDENTITY(1,1) NOT NULL, [title] [varchar](50) NULL, CONSTRAINT [PK_Table_1] PRIMARY KEY CLUSTERED ( [Id] ASC )WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_...

Expressions in Java are the primary construct for doing calculations. Here are some examples: 1 // A simple literal is an expression 1 + 2 // A simple expression that adds two numbers (i + j) / k // An expression with multiple operations (flag) ? c : d // An...

Some times you see a signal is emitted in sender thread but connected slot doesn't called (in other words it doesn't receive signal), you have asked about it and finaly got that the connection type Qt::DirectConnection would fix it, so the problem found and everything is ok. But generaly this is ba...

set oDic = CreateObject("Scripting.Dictionary") oDic.add "USA", "United States of America" oDic.add "UK", "United Kingdom" oDic.add "CAN", "Canada" For Each obj in oDic.Items Msgbox obj Next Set oDic = Nothing *Out...