How to convert VMware to VirtualBox virtual machine. Export done using OVFtool to .ovf file. Easy import to VirtualBox.

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Log4j Logging Levels explained. For the standard levels, this is the order: ALL

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How to install OpenSSH on Windows. Simple steps to follow with print screens and verifying step.

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How to parse CSV file in Java and display all the value.The solution treats the case when a column contains the delimiter and the double quote character.

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In a application you can have resources that are limited or time consuming to create a new one. e.g. a connection to a database, a new thread. A solution is to create a the limited resource once and reuse it. To address this problem the object pool pattern was introduced. The object pool design will have the mechanism to create a new object to keep the objects and to destroy the objects if necessary.

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