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How-To/Tips tutorials

Step-by-step how-to guides for software, devices, troubleshooting, productivity, and everyday technology tasks.

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How to Parse a CSV File in Java Using OpenCSV?

The CSV or “Comma Separated Values” is a file format containing data in rows and columns where each value is separated by a “comma” symbol. This file is mainly used to transfer data from one place to another due to its compressed size and easy-to-understand structure....

Merge Two Maps in Java

Map merging is essential while working on a project that is being managed by multiple team members from different platforms. Merging of maps allows us to see modifications and the latest updated data which helps in reducing conflict. Maps store data in a key-value...

How to Convert a String into DateTime in Python

Strings are a sequence of characters commonly used in Python to work with textual data. In Python, strings can represent dates and times, however, Python provides a more appropriate data type called DateTime for working with dates and times. Moreover, strings can be...

How to Compress a folder with tar

The process of compressing files reduces the amount of size of files and helps deliver email attachments or transfer these files efficiently. We can also use the compressed files and folders for backup, and use it at the time of need. Ubuntu 22.04 provides the tar...