Sometimes Eclipse gives weird errors that you have no clue why is coming. For example, recently I got this strange error in eclipse’s Problems view. This project needs to migrate WTP metadata To remove...
If you use Maven in your project for dependency management and if you use it a lot then sometimes you get into weird classpath issues where more than one version of JAR is loaded. Most of...
This tutorial guides us on how to pass Array objects from Java to stored procedures in Oracle and also, how to retrieve an array object in Java. All PLSQL arrays can not be called...
If you are a regular Eclipse user than you might have got this error many times. The error simply says, “you’ve made changes in files in your workspace from outside eclipse”. The simplest solution...
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....
iText is very powerful library. It is used extensively to create PDF files in Java applications. Although not free, iText is the de-fecto Java library for working with PDF files. It has been extensively...
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...
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...
Java Collection API is one of the most useful APIs used in any Java application. In my day to day Java coding routine, I have to deal with these APIs quite often.However sometime while...
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...