What Is Dependency Injection/ Inversion of Control And How Does It Helps In Loose Coupling?

What Is Dependency Injection/Inversion of Control And How Does It Help In Achieving Loose Coupling?

How to View Live Tomcat Logs/Output On Linux?

When you run tomcat on linux with startup.sh shell script, unlike windows console, you won’t see complete logs. You will only see this

But , almost every time, you will be required to see the logs. Tomcat saves its logs in a…

How To Create A Speech Balloon With Pure CSS?

Goal

The goal of this post is to help you understand how to create a speech balloon with pure CSS without using any image.

Quick Code

HTML

log4j style logging in Javascript

Are you from a Java background? Did you love working with log4j? Do you miss log4j style logging in Javascript? Worry no more, because with a few lines of code, you can achieve log4j style logging in your JS code.

Here’s how you can use log4j style logging in your code:

How To Create Triangles With HTML/CSS?

Triangles are useful for creating different types of design artifacts on a website, particularly speech balloons. HTML/CSS has no explicit way of creating triangles therefore some people use triangle images instead. However there is a small hack with which one…

How To Transfer Files To EC2 Server/Linux Host

You can transfer file to an EC2/Linux host via SCP. For that you first need to have the private key file downloaded on your system. Once you have it, open the terminal window and issue the following command.

Connect To Remote Machine Via SSH Using Windows, Mac Or Linux

I needed to connect to my hosting service via SSH today, it was problematic but eventually I got hold of it. Here is how you can do it. There are different ways to do it on Windows system and on Unix based or Mac systems.But…

Access MySQL Hosted on Amazon EC2 Server Remotely

If you have a working MySQL server hosted on Amazon EC2 and you want to access it remotely with a MySQL client, then follow these steps.

1. Access you EC2 server via SSH. You can do it with PuTTY on windows and by using…

How To Uncompress/Extract Java .war File

1. Open terminal
2. Go to the directory where .war file is placed with cd command.
3. Issue this command to extract/un-compress war file
   $ jar -xvf my_war_file.war

Thats it!

Installing And Testing MySQL Server On Amazon EC2 Server

First you need to connect to your Amazon EC2 instance with SSH, you can do that by using PuTTy on windows and Terminal on Linux or Mac. Once you’re connected to EC2 server, issue the following commands to install MySQL.