SEARCH KEYWORD -- PYTHON


  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

  Go Lacks Ternary Operators. Here Are Some Equivalents

If you were like me, a pure Java developer before writing Go, you must be wondering why Go doesn’t support the ternary operator like return a > 1 ? 0 : 1. Most mainstream languages like C and Java are supportive of ternary operators; languages like Python and Ruby support the simplified if-else one-liner, such as a = 0 if a > 1. However, Go is not among them. And it is not only about adding operators but also a concept of coding in a more convenient way, such as the ?: expression can...

   GOLANG,TERNARY OPERATOR     2022-12-09 19:51:32

  Python SSH Connection Tools

Program Design Purpose: We aim to create a simple Python SSH tool library that facilitates SSH communication, SCP file transfer, and SSH port forwarding through multiple jump hosts in an SSH tunnel chain. The library is designed to provide a simple API for establishing nested SSH tunnel connections through multiple jump hosts with customizable TCP ports. This allows users or their programs to automate SSH tasks such as: Batch processing SSH connection tasks, such as connecting to multiple ser...

       2024-08-30 04:46:05

  Build route graph of Hurricane Sandy

Hurricane Sandy swept US east side and landed in New York, it killed 113 persons and incurred 50 billion US dollars economic loss. Sandy is also considered as the most expensive hurricane. We will now use matplotlib and basemap libraries in Python to build a route graph of Sandy. Below is the animated GIF. Shadow is added in the graph to show the time at night, we can see from the graph that Sandy stayed a while in Panama after emerging, then it went through Cuba and became Hurricane-2. Late...

   Hurricane Sandy,Route graph,Python     2012-11-17 07:58:13

  The significance of coding competition to actual work

Some friends asked this question: In secondary schools we participate in the NOI, in university we participate in ACM/ICPC, TopCoder.What's the significance of coding competition to actual work? I participated in the NOI from 1994 to 1996, ACM/ICPC from 1999 to 2000 and TopCoder in 2002 for six months. Later I paid little attention to coding competition, so I may not understand the changes in recent years and race mode . The capabilities we can get by participating the competition can be summari...

   ACM,Programming,Facebook,TopCoder     2013-02-28 20:38:23

  Write high quality JavaScript and CSS with SublimeLinter

SublimeLinter is a plugin for one of the front end editor--Sublime Text, it is used to highlight those syntax not conforming to standard or wrong, it supports JavaScript,CSS,HTML,Java,PHP,Python,Ruby and some more.This article will introduce how to configure SublimeLinter in Windows to validate JavaScript and CSS codes. Preparation Install Sublime Text package control tool : http://wbond.net/sublime_packages/package_control Install SublimeLinter with Sublime Text package control tool :https://gi...

   SublimeLinter,Sublime Text,Validation     2013-06-14 23:24:51

  Some useful code editors for developers

A good code editor will save developers much work. It can help developers find syntax errors easily through code highlight capability. It also makes the code more readable and maintainable through the indentation. Here we recommend some excellent code editors which you may want to have a try. Compilr Compilr is an online IDE, it supports 8 languages as of now including : C, C++,C#,Java,JavaScript,PHP ,Python,Ruby and Visual Basic. Compilr is developed by Ninjia Otter Inc in Canada. CodeMirrow C...

   Code editor,Code highlight     2013-03-20 12:25:13

  New features in Java 9

Java 9 is planned to be released in March 2017. It will be 3 years since Java 8 was released. Are you still excited about the new features introduced in Java 8 such as Lambda, new Date APIs etc? Now Java 9 is to be released and there are also quite a few fantastic new features to be introduced. Below is a list of major new features in Java 9. Modular system. Java 9 will introduce a brand new modular system to organize Java codes. The modular system will divide different packages into diffe...

   JAVA,NEW FEATURE,JAVA 9     2016-04-05 09:56:01

  A couple of tips for beginning programmers

Whether it is football, quantum physics, a new foreign language or programming, the beginnings are problematic. What is more, no amount of advice can teach you as much as your own experience. Nevertheless, the following tips will help you avoid some mistakes, save your time and develop good programmer habits from the very beginning.Practise logical thinkingAlthough some may laugh at the stereotype of a programmer being a Maths genius, there is no use denying that learning Maths and Logics prepar...

   Programming,Tips,Beginner     2014-06-17 07:47:31

  Use progressive JPEG to improve user experience

JPEG image files can have two different save types : Baseline JPEG and Progressive JPEG. Both of them have the same extension name but with different display effect. Baseline JPEG This type of JPEG files are scanned from top to bottom consecutively, each line of the image data will be saved sequentially. When opening this kind of images, data will be displayed with the save order line by line until all the data are read. If the image size is very large or network speed is very slow, the image wi...

   USER EXPERIENCE,PROGRESSIVE JPEG,BASELINE JPEG     2013-07-25 08:11:50

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