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: Create Zip File, java, java.util.zip, ZipEntry, ZipEntryOutputStream, ZipOutputstream
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: access private fields, access private methods, java, Java Programming, Java Reflections, java.lang.Class, java.lang.reflect, java.lang.reflect.Field, private access specifier, private member access, Programming, Reflections, setAccessible
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, Java Programming, java.lang.Class, java.lang.reflect, java.lang.reflect.Constructor, java.lang.reflect.Method, Programming, reflect, Reflection
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: java, java.util.zip, Zip, ZipEntry, ZipFile
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: ASP, BASIC, C++, Computer Programming, Evil, GW BASIC, java, Multiple Inheritance, Pascal, Perl, PHP, PL SQL, PLSQL, Pointer Arithmatics, Programming, Python Pointers, QBASIC, RegEx, Regular Expressions, Visual Basic
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: Convert, gif, giff, iText, java, jpe, jpeg, JPG, Latex, PDF, png, Portable Document Format, SLIIT
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: Add Copyright Notice, Automate, Bulk Image Processing, Bulk Resize, Copyright, Copyright Notice, Crop, Facebook, java, JPG, Photography, Photos, Resize, Software, Upload