Java: How to Load CSV file into Database
Loading CSV file into Database can be cumbersome task if your Database provider does not offer an out of box feature for this. Most of the time you’ll spend up in creating valid insert...
java code Tutorials, Tips & Tricks
Java MD5 Hashing & Salting: Secure Your Passwords
The MD5 Message-Digest Algorithm is a widely used cryptographic hash function that produces a 128-bit (16-byte) hash value. MD5 has been employed in a wide variety of security applications, and is also commonly used to check data integrity....
How To Pick Image From Gallery in Android App
Since few days I am working on an Android app and learning all the nitty gritty of its APIs. I will share few How-to stuffs that we frequently require in Android.To start with let...
How To Iterate HashMap in FreeMarker (FTL)
In this short article we will see how to iterate an HashMap in FreeMarker template. Consider below code which is normally used to iterate a List in FTL. Output: Here in above code, we...
Batch Insert In Java – JDBC
Let’s see how we can perform batch insert in Java using JDBC APIs. Although you might already knew this, I will try to explain the basic to a bit complex scenarios.In this note, we...
How To Create QR Codes in Java & Servlet
Nowadays, Quick Response (QR) Codes are becoming more and more useful as they have gone mainstream, thanks to the smart phones. Right from the bus shelter, product packaging, home improvement store, automobile, a lot...
Calculate Free Disk Space in Java using Apache Commons IO
As a Java developer, lot of times I have to play around with file system. Sometimes I have to copy files/directories from one location to another; sometimes have to process certain files depending on...
Convert ArrayList to Arrays in Java
A lot of time I have to convert ArrayList to Arrays in my Java program. Although this is a simple task, many people don’t know how to do this and end up in iterating...
Double Brace Initialization in Java!
Few days back I came to know about a different way of initializing collections and objects in Java. Although this method of initialization has been there in Java since quite a few years now,...
Varargs in Java: Variable argument method in Java 5
I think I am late for writing about varargs. The feature of variable argument has been added in Java 5 since its launch. Still I will write something about varargs. varargs has been implemented...