Author Archives: GreeenGuru

About GreeenGuru

Computer Enthusiast

Time and Date Difference Calculator / Time Zone Converter

Calculate the number of years, days, hours, and seconds between two dates and times. Or use the current date and time and change the time zone to find the hour difference between two time zones. It’s all available in one simple interface. Enjoy! Continue reading

Posted in Javascript | Tagged , | 1 Comment

Use Excel to Automate Repetitive Code

Have you ever wanted to pull data from an Excel Spreadsheet and place it into a Class or Object in your program? If you need to use a large number of repetitive structures, do you think it would be easier to create and modify them in Excel first? I’ll show you how I’ve used Excel 2007 to create a large table, then used Excel tools to automatically turn them into JavaScript Objects. Continue reading

Posted in Excel, Javascript | Tagged , , , | Leave a comment

How to Create a 360 x 180 Degree Panorama

If you’re a novice photographer looking to create a 360 x 180 degree Panorama similar to those found at 360 Cities, ViewAt.org, or panoramas.dk, then this step-by-step tutorial is for you. It’s also an excellent guide for photographers new to panoramic photography. Continue reading

Posted in Photography | Tagged | 6 Comments

Customize Your Fresh Windows 7 Installation

If you’ve just installed Windows 7 and want to do some tweaking to make your new OS more functional and to look better, then this walkthrough is for you. Continue reading

Posted in Windows | Tagged | 1 Comment

Best Way to Select Foreground with GIMP (A Photo-Editing Tutorial)

When editing a photograph, it is common to apply an effect to just the foreground and not the background, or vice versa. The problem is that GIMP does a poor job of selecting the foreground for you, so you have to do it yourself (From what I’ve seen, Photoshop isn’t much better at this). This tutorial will show you a couple methods for foreground selection, how to use them together, and how to apply them with some other basic photo editing techniques to improve a photo. Continue reading

Posted in Ubuntu | Tagged | 1 Comment

Using a VPN in Ubuntu 10.10 (CryptoCloud aka TorrentFreedom)

Having trouble connecting to your VPN in Ubuntu 10.10? I’ll show you how to connect to CryptoCloud (previously TorrentFreedom) without downloading any software other than OpenVPN. Continue reading

Posted in Networking, Ubuntu | Tagged , , | Leave a comment

Clean up the ‘Open With’ Menu in Ubuntu 10.10

Is your ‘Open With’ menu cluttered with duplicates and bad shortcuts? See this guide to clean it up! Continue reading

Posted in Ubuntu | Tagged | 1 Comment

Customize Your Fresh Ubuntu 10.10 Maverick Meerkat Installation

If you’ve just installed Ubuntu 10.10 and want to do some tweaking to make your new OS more functional and to look new, then this walkthrough is for you. Continue reading

Posted in Ubuntu | Tagged | 1 Comment

Eclipse – C/C++ (CDT), Python (PyDev), and Qt (Qt4) Plugins Installation Tutorial for Ubuntu 10.04

This walk-through will take you from a fresh install of Eclipse to a fully-functional IDE ready for development of Java, Python, C/C++, and Qt GUI applications. Every step is tailored to Ubuntu but might possibly be useful to Windows/Mac users as well. Enjoy! Continue reading

Posted in Ubuntu | Tagged , , , , , | 22 Comments

JUnit Testing Java Code Using Eclipse

New to Java? Trying to learn how to test your code? Trying to learn how to use the popular Eclipse IDE? Trying to do all three at once? Me too. Hopefully, this tutorial will help both of us. Continue reading

Posted in Java | Tagged , | Leave a comment