SEARCH KEYWORD -- Programming language


  Concise bash programming skills

The following are some concise bash programming skills which we may need in our daily programming work. 1. Check status of command execution The usual way: echo abcdee | grep -q abcd   if [ $? -eq 0 ]; then echo "Found" else echo "Not found" fi Concise way: if echo abcdee | grep -q abc; then echo "Found" else echo "Not found" fi Of course you can remove if...else with following code [Sun Nov 04 05:58 AM] [kodango@devops] ~/workspace $ echo abcdee | grep -q ...

   bash, skill,tip     2012-11-06 10:38:42

  JShell -- The command line tool to run Java code in Java 9

Java 9 is currently a work-in-progress and is planned to be GAed in March 2017. Quite a few new features will be introduced in the new release. The coolest feature is project Jigsaw which is to modularize the Java packages so that a customized JDK can be built and shipped with only the necessary modules to fulfill their project requirement. Apart from this feature, another big new feature is project Kulla -- JShell. In simple, JShell is a command line tool which can be used to run...

   JAVA 9,JSHELL,KULLA     2016-04-01 21:46:48

  Should we use Abstract class or Interface?

When we write programs, we may often get into a situation where we don't know whether we should use Abstract class or Interface when we want to define an abstract object. These two are very similar and they are interchangeable in many cases. On Stackoverflow, this question is asked lots of times and it's related to many programming languages. Also in the official documentation of PHP regarding the Abstract class and Interface, people are arguing about this. To understand this question, their dif...

   DIFFERENCE,INTERFACE,ABSTRACT CLASS,COMPARISON,OOP     2013-04-15 11:44:36

  Set up Superset on ubuntu 16.04 LTS

Apache Superset (incubating) is a modern, enterprise-ready business intelligence web application. Compared with business-focused BI tool like Tableau, superset is more technology-navy. It supports more types of visualization and able to work in distributed manner to boost the query performance. Most importantly, it is free of charge! An example dashboard: Let’s go and set it up. Create a virtualenv Assume Anaconda is installed for python management. # create a virtualenv with python 3.6 co...

   TUTORIAL,UBUNTU,SUPERSET     2019-10-19 21:34:55

  Load and execute JavaScript

When we load and execute JavaScript in a webpage, there are many points we need to care about because of its design and feature. There are two features about JavaScript execution in a browser: 1). The JavaScript codes will be executed immediately once loaded;2). When JavaScript codes are being executed, they will block the following contents (including page rendering and other resources downloading). So if there are multiple js files to be loaded, these codes will be executed sequentially. Since...

   JavaScript,async,defer,load,execute     2013-06-07 04:53:46

  6 Astounding Joomla Templates That Support EasyBlog

No doubt, blogging offers a fabulous platform where one can express his emotions, and share his views with others over the Internet. It can also help you leverage your business, as you can publish suitable blogs to efficiently promote your products and services. Moreover, one can also use blogs to exhibit his online portfolio and thus, benefit his business.  Today, there are several blogging platforms that offer a brilliant blogging experience. However, Joomla makes a superior choice among ...

   joomla, joomla templates, mobile template     2015-07-03 01:25:19

  Step-by-Step Guide: How to Choose a Website Developer

A software development partner greatly affects the success and performance of your online project it is involved in. Therefore, it is so important to approach your IT partner selection with special care and responsibility. Find below the main steps and decisions you need to make in order not to fail in this business.  Step 1: Decide What Tasks the New Site Should Perform The main goal of any business (and a website) is to generate and grow profits. You shouldn't create or update a site just...

   WEBSITE DEVELOPER,WEB DESIGN     2020-08-26 03:56:41

  Why exception would be thrown when deleting element while looping through HashMap in Java

HashMap and other Collection types are frequently used in Java application programming. This post will explain why exception would be thrown when deleting element with Map.remove() while looping through a Map using Iterator. This issue would also occur to other Collection types such as Set, List. Below is a sample code snippet demonstrating the exception thrown. Map<String,String> map = Collections.synchronizedMap(new TreeMap<String,String>()); map.put("key1","value1"); map.put("ke...

   JAVA,HASHMAP,CONCURRENTMODIFICATIONEXCEPTION     2018-06-30 12:49:09

  Eclipse 4.4 is going to fully support Java 8

Eclipse is the most popular IDE for developing Java applications, but it seems lag behind the Java 8 release a couple of months ago. The current Eclipse is not supporting Java 8 and if you want to run Java 8 programs on it, you need to install a plugin. You can find the plugin at the Eclipse market place. Now Eclipse 4.4 is coming to us on 25th June and the code name for it is Luna. This new version of Eclipse introduces some new features which can ease developer's work, these features includin...

   Eclipse,Luna,Java 8     2014-06-18 05:00:37

  How to Become a Successful Web Designer

All web designers walk a thin line between art and business. Their job is to make a business site flourish, generate leads and revenue, yet – it has to represent the company in the best possible light. In order to achieve greatness in the world of web design, you need a lot of patience, hard work, and persistence. Most of the average designers make quite similar sites, limited in certain ways, and they choose to keep to the already tried out technique, but this can come at a cost for any ...

   WEB DESIGN,WEB DEV     2017-06-30 07:17:42

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