I’m working with an application to have the item code. Item code column is set as an INT(5) but not all the item code values are 5 digits. So I need to round off the item code based on 5-digits. If the item code is 199, it should be display as 00199. How to make …
Category: Java
Java, pure object oriented programming language. It has three different editions: Java 2 Standard Edition (J2SE), Java 2 Enterprise Edition (J2EE) and Java 2 Micro Edition (J2ME)
Permanent link to this article: https://blog.openshell.in/2014/09/mysql-zerofill-and-lpad-shape-digits-in-db/
Aug 19
Best way to order the best matching records in MySQL
If we are searching a word (string) in the mysql table, usually we will use the below method: [sql] SELECT * FROM user WHERE name LIKE ‘%searchstring%’ ORDER BY name ASC; [/sql] If you search like this, It will order the result set based on the ASC of name. It will not order the result …
Permanent link to this article: https://blog.openshell.in/2014/08/best-way-to-order-the-best-matching-records-in-mysql/
Aug 09
How to create the JAR file
The JAR file format is a compressed format used primarily to distribute Java applications and libraries. It is built on the ZIP file format, and functions in a similar way; many files are compressed and packaged together in a single file, making it easy to distribute the files over a network. If you need to …
Permanent link to this article: https://blog.openshell.in/2014/08/how-to-create-the-jar-file/
Aug 02
How to install maven on Ubuntu
Apache Maven is a software project management and comprehension tool. Based on the concept of a project object model (POM), Maven can manage a project’s build, reporting and documentation from a central piece of information. This will helps you to install Apache Maven 3 on ubuntu. Follow the steps to install: Step1: Before you can …
Permanent link to this article: https://blog.openshell.in/2014/08/how-to-install-maven-on-ubuntu/
Aug 02
How To Install Apache Tomcat 8 on Ubuntu
Apache Tomcat is an open source web server used to deploy and serve JavaServer Pages (JSP) and Java Servlets. This will helps you to install Apache Tomcat 8, Apache Tomcat 8 now has its first stable release: 8.0.9. Follow the steps to install Apache Tomcat 8 on Ubuntu: Step 1: Install Java 7 Before you …
Permanent link to this article: https://blog.openshell.in/2014/08/how-to-install-apache-tomcat-8-on-ubuntu/
Aug 25
Java Essential Tips: Automatic Resource Management
Java7 introduced many features that simplifies coding which are overhead in older Java versions. In this blog we will see the feature called Automatic Resource Management. This is really a good feature in Java7 which close the resources like IO streams automatically. Everything you need to do is implement java.lang.AutoCloseable. try-with-resources Statement try-with-resources statement simply …
Permanent link to this article: https://blog.openshell.in/2013/08/java-essential-tips-automatic-resource-management/
Nov 07
Access External Property File in Spring Application Context using PropertyPlaceHolderConfigurer
Target Audience: Web Component Developers, Configuration Managers and Deployment Managers What should you know already: J2EE, Spring MVC In an enterprise application we often use property files to share data in Java classes and XML configuration files. The problem is accessing these property files in your code. Whenever you want to read a value out …
Permanent link to this article: https://blog.openshell.in/2012/11/access-external-property-file-in-spring-application-context-using-propertyplaceholderconfigurer/
Mar 04
Java Essential Tips: How to set null value in Java JDBC PreparedStatement
This Java blog explains how to pass ‘null’ values to PreparedStatement. Passing ‘null’ to primitive data types is little tricky.
Permanent link to this article: https://blog.openshell.in/2012/03/java-essential-tips-how-to-set-null-value-in-java-jdbc-preparedstatement/
Jan 29
Java Essential Tips: Static Import
Static Import Static import is a mechanism to include constants into your code without referring its class in which the constants defined. For example, if you are using Integer.MAX_VALUE or some other constants field of class java.lang.Integer then you could simply use the following static import statement: [java]import static java.lang.Integer.*; class Demo{ public static void …
Permanent link to this article: https://blog.openshell.in/2012/01/java-essential-tips-static-import/
Jul 28
Scaling Image Using Java
This blog explains how to scale up or down an image using Java Advanced Image (JAI) API.
Permanent link to this article: https://blog.openshell.in/2011/07/scaling-image-using-java/