How to use JSON Object in JavaScript

  • 06 February 2020
  • ADM

JSON is part of JavaScript programming language and is the main choise when it comes to data manipulation in JavaScript.

JSON is used from storing data, transfering data between client and server to configuring data.


How to disable submit button with jQuery

  • 06 January 2020
  • ADM

For a long submit operation or to avoid users clicking twice a submit button, a common solution is to disable the submit button after user clicked on it.

To disable a button using jQuery you need to add the disabled attribute to the button as true.


How to fix apt lock-frontend error in Ubuntu

  • 24 August 2019
  • ADM

How to fix the E: Could not get lock /var/lib/dpkg/lock-frontend - open (11: Resource temporarily unavailable) error.


Java Custom Annotations Example

  • 26 July 2018
  • ADM

How to create Java Custom Annotation. A simple example of creating Annotations in Java and usage by calling the Reflection API.


How to execute shell command from Java

  • 20 June 2018
  • ADM

How to execute a shell command from Java using Runtime.getRuntime().exec() method.


How to generate UUID / GUID in Java

  • 19 June 2018
  • ADM

How to generate UUID / GUID in Java using java.util.UUID class, UUID.randomUUID() method.