John D K

Java 9 how to format string 7 examples

In post are covered string formats for: * String.format() -

Java 9 ArrayList how to count number of elements

In this 3 different ways of counting elements of ArrayList

Java 9 ArrayList and List index example

With ArrayList and List you can get the index of

Java 9 ArrayList removeAll except some

Method retain() of ArrayList class can be used if you

Java 9 ArrayList clear and empty check

You can check if an ArrayList list is empty by

Java 9 ArrayList add, set and remove element

Java ArrayList has useful methods for adding, setting and removing

Quantum vs Classic Computer: Hide Queen

I want to start a new tutorial about Quantum computers

MySQL update, insert, delete examples

In this post we will cover the rest of the

SQL select aggregate functions examples

In this post we will cover most used SQL select

Ubuntu 18 create new sudo user and change password of user

Creating new user in Ubuntu or Linux Mint and assigning