Installing MySQL on Ubuntu using the command line is the same as on Ubuntu server. The short answer is: Additionally, you can run the secure installation script: Let’s take a deeper look how to install MySQL on Ubuntu, how to check MySQL version, how to access database as admin and how to remove it completely. … Read more
I prepared a list of the best books with author names for learning, optimizing, troubleshooting, and administrating your MySQL database. Most of these books are in my home library. Books for Beginners These books could be useful for beginners to learn MySQL from scratch and for developers with some experience to structure your knowledge. Murach’s … Read more
First of all, let’s define what is DDL, DML, DCL, and TCL in DBMS. DDL is Data Definition Language DML is Data Manipulation Language DCL is Data Control Language TCL is Transaction Control Language As you see from its name it allows to define, manipulate and control data and transactions in SQL language. It’s four … Read more
In this tutorial, you will learn how to make classic javascript snake game using HTML, CSS and vanilla JavaScript. Everyone remembers that retro game. It’s quite easy and cool. And first of all, I want to show you the result. I uploaded it to my site. In this tutorial, I will not show you all … Read more
It’s really simple to update Java on Ubuntu – just 2 simple commands. While you’re using PPA as I described in the installation chapter you can execute update and upgrade commands in the console and that’s it. Open Terminal (Alt+Ctrl+T) and execute: If a new version of Java is available it will be automatically updated.
Java Scanner is a simple text parser, it can parse a file, input stream or string into primitive and string tokens using regexp. It breaks an input into the tokens using delimiter regular expression (whitespace by default Character#isWhitespace(char)). Tokens can be converted into primitives (double, float, long, int, byte, short, boolean), number objects (BigDecimal, BigInteger) … Read more
git clone command is the first step when you want to clone a remote repository or branch from github or bitbucket. Syntax is: As you see it’s a really big amount of options and I’ll explain to you how to implement the most popular use cases. Git Clone Repository git clone memeFirst of all, you … Read more
Java enum is a data type that allows you to define a set of related constants. java.lang.Enum is a base class for all Java enumeration types, but it’s not necessary to use it directly, you could define enum using enum keyword. Let’s take a look at Color Java enum example: If you’ll use a Color … Read more
It’s the 2nd part of Java interview questions series, the 1st one part is Core Java Interview Questions and 3rd part is Spring Interview Questions. My plan is to collect all the most popular questions and answers, but as the 1st step, I decided to start with questions only. When my list will be full, … Read more
I had more than 50 interviews since 2010th. I collected all the most interesting and useful Java interview questions. This is not only basic coding interview questions or questions for experienced developers. I think this collection would be good for everyone even if you’re basic (entry level) or advanced engineer (advanced level) or even architect. … Read more