Archives: java

Java Zip API: How to Create a Zip File Using Java

July 11, 2010 | By Rakhitha | 5 Comments | Filed in: Java Stuff, Tech.

This is a follow-up to my earlier post “Java Zip API: How to Read a Zip File Using Java“. This time it’s about how to create a zip file using Java. This is even simpler than reading a zip file. Following is a very simple example which create a zip file named RaKasUniverse.zip. Inside that • Read More »

Tags: , , , , ,

Fun with Java Reflections: Access Private Member Fields/Methods of other Classes

June 12, 2010 | By Rakhitha | No Comments | Filed in: Java Stuff.

This is a follow-up to my earlier post on Java Reflections.  In the earlier post I just showed how to invoke methods of an object dynamically using reflection. Here I am going to talk about accessing attributes of another object using reflection, with a little twist. Just like my earlier post I’ll start this with • Read More »

Tags: , , , , , , , , , , , ,

Java Core API: Introduction to Java Reflections

June 12, 2010 | By Rakhitha | 6 Comments | Filed in: Java Stuff.

Here is an exercise for you! Write a java program that take two or more command line arguments. 1st argument is a class name. 2nd argument is a method name. Rest of the arguments are string values to be passed in to that method. Your program has to load the class specified in first argument • Read More »

Tags: , , , , , , , ,

Java Zip API: How to Read a Zip File Using Java

June 11, 2010 | By Rakhitha | 3 Comments | Filed in: Java Stuff.

Java API give a very simple set of classes to deal with zip files in its java.util.zip package. I am just going to show how to access the content of a zip file using these classes. Basically in java point of view a zip file is a collection of zip entries. you just select the • Read More »

Tags: , , , ,

Me, My Self and Java

June 11, 2010 | By Rakhitha | No Comments | Filed in: Java Stuff, Me, Myself & I, Tech.

Programming is my main hobby. I wrote my first computer program when I was 11 years old. Then I was using GW BBASIC. Since then I have learned QBASIC, Pascal, Visual Basic, Perl, Java, PLSQL, C++,  PHP, C#, bit of Python and many other things over time. I screwed up  my A/L for it but • Read More »

Tags: , , , , , , , , , , , , , , , , , , ,

Free Tool to Bulk Convert JPG, PNG, GIF Images to PDF

April 14, 2010 | By Rakhitha | 3 Comments | Filed in: Tech.

WISH YOU A VERY HAPPY SINGHALA AND HINDU NEW YEAR!!! 🙂 This post is about a very simple tool that I wrote in 2007 when we were studying at SLIIT. I published this at the time on Google Code. But I noticed that not many people are finding it there. Thats why I am posting • Read More »

Tags: , , , , , , , , , , , ,

How I Upload Photos to Facebook: Automated Bulk Image Resizing and Adding Copyright Notices

April 13, 2010 | By Rakhitha | 1 Comment | Filed in: Me, Myself & I, Sri Lanka, Tech.

If you are using a super fast internet connection. And you have plenty of time to add copyright notices to photos one at a time, this post is not for you. I am using a crappy internet connection. I also find that java based face book photo uploader takes a long time compared to the • Read More »

Tags: , , , , , , , , , , , , , ,