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 Tutorials, Tips & Tricks
Read / Write CSV file in Java
If you want to work with Comma-separated Files (CSV) in Java, here’s a quick API for you. As Java doesn’t support parsing of CSV files natively, we have to rely on third party library. Opencsv is...
Check if String is valid Date in Java
In Java, we play a lot with Dates. Here’s one more scenario. You have a string which has date in it. You want to convert it into a valid java.util.Date object. Now in Java you can...
Java: Passing Array to Oracle Stored Procedure
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...
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....
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...
Convert Arrays to Set in Java
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...
Spring MVC: Multiple Row Form Submit using List of Beans
Recently I had a requirement where using Spring MVC we had to take inputs multiple rows of data from user. The form had many rows which user can edit and submit. Spring MVC provides...
Java: Convert Exponential form to Decimal number format in Java
While working with Doubles and Long numbers in Java you will see that most of the value are displayed in Exponential form. For example : In following we are multiplying 2.35 with 10000 and...
Convert String to Enum Instance in Java
Recently while working in one of the requirement, I had to convert String values to Enum. I didn’t realize there is a simplest way of doing this. Here is the solution. Whenever an ENUM...