Tutorial by Examples: u

Fibonacci Numbers are a prime subject for dynamic programming as the traditional recursive approach makes a lot of repeated calculations. In these examples I will be using the base case of f(0) = f(1) = 1. Here is an example recursive tree for fibonacci(4), note the repeated computations: Non-Dy...

There are many ways to use MaterializeCSS framework. Few things to keep in mind before going to installation It is not a CSS only framwork, though it has CSS name in it. We can use its SCSS too It is not built for Angular It is a component framework too built on jquery. Though we are not supp...

It was most frequent question that can a same thread can be run twice. The answer for this is know one thread can run only once . if you try to run the same thread twice it will execute for the first time but will give error for second time and the error will be IllegalThreadStateException . exam...

A simple HTTP Request for the resource /index.html. The host www.example.com is specified in the HTTP Host header. GET /index.html HTTP/1.1 Host: www.example.com

You can check the version of Sass using sass -v Update all ruby gems sudo gem update Update only Sass sudo gem update sass

Open your command line Installation using Ruby gem update --system gem install compass Create a Project compass create <myproject> This will initialize a compass project. It will add a folder called . The folder will look like have the following structure: File/Folderdescription...

You can find a complete reference which CSS3 components are supported on this page In order to use CSS3 in your project Compass provides mixins to support CSS3 features in every browser. On top of your Sass/Scss file you have to specify that you want to use compass @import "compass/css3"...

package com.streams; import java.io.*; public class DataStreamDemo { public static void main(String[] args) throws IOException { InputStream input = new FileInputStream("D:\\datastreamdemo.txt"); DataInputStream inst = new DataInputStream(input); int count...

Locate and open your TIBCO BW bwengine.tra file typlically under TIBCO_HOME/bw/5.12/bin/bwengine.tra (Linux environment) Look for the line that states: *** Common variables. Modify these only. *** Add the following line right after that section tibco.deployment=%tibco.deployment% ...

A minimal setup for camera output preview (Swift 2, Swift 3) import UIKit import AVFoundation class ViewController: UIViewController { var session: AVCaptureSession? var cameraPreviewLayer: AVCaptureVideoPreviewLayer? override func viewDidLoad() { super.viewDidLoad() ...

Valgrind provides you with the lines at which the error occurred at the end of each line in the format (file.c:line_no). Errors in valgrind are summarised in the following way: ERROR SUMMARY: 1 errors from 1 contexts (suppressed: 0 from 0) The most common errors include: Illegal read/write er...

One can use the following methods in order to import a Mercurial Repo into Git: Using fast export: cd git clone git://repo.or.cz/fast-export.git git init git_repo cd git_repo ~/fast-export/hg-fast-export.sh -r /path/to/old/mercurial_repo git checkout HEAD Using Hg-Git: A very deta...

We can use typedef to simplify the usage of function pointers. Imagine we have some functions, all having the same signature, that use their argument to print out something in different ways: #include<stdio.h> void print_to_n(int n) { for (int i = 1; i <= n; ++i) printf(...

Sometimes we need to join multiple tables to get aggregate data in return. here is how we can achieve the same using CodeIgniter Query Builder / Active Records. public function getStudentInfo($studentid){ $query = $this->db->select("st.id, st.name, st.class, mk.maths, mk.science&quo...

Usually, the routes in a controller have the same prefix connected somehow with functionality of this controller. For example: public class ProductsController : ApiController { [Route("api/products")] public IEnumerable<Product> GetProducts() { ... } [Route("a...

Rowid : The row ID is a unique identifier that is generated by the cart code when an item is added to the cart. The reason a unique ID is created is so that identical products with different options can be managed by the cart. Every item in cart has a rowid element and by rowid you can update cart ...

Detailed instructions on getting nfc set up or installed.

First of all you need to create AVAssetWriter NSError *error = nil; NSURL *outputURL = <#NSURL object representing the URL where you want to save the video#>; AVAssetWriter *assetWriter = [AVAssetWriter assetWriterWithURL:outputURL fileType:AVFileTypeQuickTimeMovie error:&error]; if (!...

#include <stdio.h> #include <pthread.h> void *thread_func(void *arg) { printf("I am thread #%d\n", *(int *)arg); return NULL; } int main(int argc, char *argv[]) { pthread_t t1, t2; int i = 1; int j = 2; /* Create 2 threads t1 and t2 wit...

Option Explicit 'GetSystemMetrics32 info: http://msdn.microsoft.com/en-us/library/ms724385(VS.85).aspx #If Win64 Then Private Declare PtrSafe Function GetSystemMetrics32 Lib "User32" Alias "GetSystemMetrics" (ByVal nIndex As Long) As Long #ElseIf Win32 Then Private...