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Set Up a Database Dialect in Spring Boot

For setting database dialect in Spring Boot, rely on spring.jpa.properties.hibernate.dialect?property in application.properties. For example, setting the MySQL5Dialect dialect can be done as below: spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQL5Dialect

Using MICROSECOND in MySQL

By default, developers work with time up to the level of seconds, i.e. HOURS, MINUTES and SECONDS. There could be instances in which we may want to work on the

Check if a Character Is Whitespace

In computer programming, whitespace is any character or series of characters that represent horizontal or vertical space in typography. Learn how to to check if a character is whitespace, as

Converting a Code-Point into a String

To convert a code-point (Unicode surrogate pair) into a string, rely on the following code: String str = “hello world”;int cp = str.codePointAt(some_position_in_str);String ch = String.valueOf(Character.toChars(cp));

Formatting Global Dates in Java

Dates are an important part of all record keeping activities. Due to globalization, it is important to understand how each country represents the date. Some countries start the date with

3 More Hints for Building Faster SQL Queries

For building faster SQL queries, follow these hints. 1. Use Smaller batches Always try to delete data or update data in smaller batches. If you try to delete thousands of

Finding the Current Quarter in MySQL

With MySQL, we can find out the quarter by providing a date. In the example below, we will look at the current quarter with input as current date. Query: SELECT

Loop the Characters of a String

Looping the characters of a string can be done via charAt() or toCharArray() as follows: String str = “hello world”;for (int i = 0; i

Extract Faces Using Amazon Rekognition

AmazonRekognitionClient amazonRekognitionClient = new AmazonRekognitionClient(Amazon.RegionEndpoint.);byte[] imageData = System.IO.File.ReadAllBytes(inputImageFile);DetectFacesRequest facesRequest = new DetectFacesRequest();facesRequest.Image = new Amazon.Rekognition.Model.Image{Bytes = new MemoryStream(imageData)};DetectFacesResponse facesResponse = amazonRekognitionClient.DetectFaces(facesRequest);//If faces are detected, extract themif (facesResponse.FaceDetails.Count > 0){foreach (var

Write A Guest Post to the DevX

 Hello Editor, I am Rooney Reeves working as a Business Development Executive at eTatvaSoft. I’m writing to become more actively involved with your publication and I’d love to contribute a guest post on your website. For my writing skill, You can check out some of my published article links as listed below:     https://readwrite.com/2019/03/20/iot-and-ar-are-found-revolutionizing-the-world-of-mobile-apps/     https://blogs.sap.com/2019/01/21/combining-iot-with-custom-mobile-apps-is-it-an-opportunity-or-a-roadblock/     https://codepen.io/lisadawson/post/why-is-angularjs-going-to-be-the-hot-favorite-among-web-developers     https://www.devsaran.com/blog/react-development-framework-taking-over-front-end-development     https://www.getelastic.com/6-digital-payment-trends-to-keep-an-eye-on I’ve been brainstorming some topics that I think your readers would get a ton of value. I’d like to pitch that topics which I think would be of interest to your readers. Here are the details: Topic 1: Angular 2 ??? Learn The Role Of Different Zones Topic 2: Laravel 5: Repositories and Services- How To Use Them? Topic 3: Angular 2- How To Protect Routes Using Guards If you don’t like the topics, we can always switch to something more suitable. I’ll make sure the piece overflows with information that can’t be found. What do you think? Would that be of interest?

Working with Multi-line Text

Starting with JDK 13, we can define multi-line strings using “”” as follows: String text = “””some textsome textsome text”””;

3 Hints for Achieving Faster SQL Queries

For faster SQL queries, follow these hints. Know your data:When you know your data, or the structure of where your data is coming from, you will know how to formulate

Find the Max Value Using Python

Use the max() function to determine the value of the maximum number in a list. ages = [56, 34, 22, 35, 56, 89]maximumValue = max(ages) That’s all there is to

Setting a Proxy in Java

Let’s assume that we have a proxy at address proxy.host:8888. We can set up this proxy via the JDK 11 HttpClient as follows: HttpClient client = HttpClient.newBuilder() .proxy(ProxySelector.of(new InetSocketAddress(“proxy.host”, 8888)))

Employing the Formatter Class in Java

The Formatter class is used to format the output as needed. Here, we are trying to print the current time formatted in more than one format. Please see the output

Beginner’s Guide to the Short Primitive

A short is a 16-bit signed integer. It has a minimum value of -215 (-32,768), and a maximum value of 215 ‘1 (32,767) short example = -32; short myShort =

Using Enum Effectively

Learn how to use enum effectively in a switch case block. There are multiple advantages to not making any mistakes since the originals are defined in the enum. public class

CompTIA Certifications Exam – What You Should Do For Preparation

Just passing the CompTIA Certification Exams can seem like a huge and daunting obstacle. The good news is there are lots of steps you can take to make sure you???re as prepared as possible. As with any exam, preparation is the key to success. Here are some of the top tips for getting ready for the CompTIA certification exams.???   Read it, Read it, Read it All!Even if you???re more of a hands-on learner, it pays to read up on material that???ll be on the exam. Because text books are often prohibitively expensive, it pays to reach out to your local library to see what kind of books they have on the subject. Cruising the thrift shops is another way to find helpful material. Many people pass their books off to one of these shops once they???re done studying for their own exam.???   Write It DownWhether studying on your own, or taking a series of classes, one of the most effective ways to commit something to memory is to write it down. Once you have a good variety of notes, comb through them carefully for the most relevant information and use it to make your own study guide.???   Get Hands-On ExperienceWhile it doesn???t make sense to go out and buy ten of the latest, greatest pieces of hardware so that you can practice your skills, you can cruise yard sales, classified ads, and thrift shops for older pieces of hardware. The older technology isn???t going to be on the exam, most likely, but if you can get an ancient hard drive networked, you???ll probably have a much better chance at figuring out what???s wrong in a newer setup.???   Practice, Practice, PracticeThere are lots of great resources on the internet, including CompTIA practice tests. Take advantage of them! Practice tests can help familiarize you with the style of the test, as well as give you some insight as to what kinds of questions you???ll be answering on the real thing.You also have a good opportunity to better understand networking through your own in-home devices. Look at how your computers link up on your home network. Take apart an old modem and get a better understanding of connections and routing issues, or use these exercises as a refresher before taking the exams. The technology that you use every day can help give you a better practical understanding of networking and security issues and how to deal with them.???   Use Your HeadSome of the questions you???ll encounter on the CompTIA Exams will be multiple choice. Even if you don???t know the right answer, you might be able to use logic and common sense to eliminate some of the incorrect answers. This will give you a better chance of picking the right answer from the remaining options.

Understanding TOP WITH TIES in SQL

The WITH TIES clause can only be used only with TOP and ORDER BY. Both TOP and ORDER BY are required. Now what does the WITH TIES clause actually do?

Working with the StringJoiner Class in Java

The StringJoiner class helps in formatting strings when there are multiple values and you want to present them with some delimiter and some pre and post suffixes. The delimiter, pre

Quick Approach to Creating a Custom RuntimeException

The quickest way to create a custom RuntimeException is as follows (simply extend RuntimeException): public class IncorrectFileException extends RuntimeException { public IncorrectFileException(String errorMessage, Throwable err) { super(errorMessage, err); }}

Moving a Folder in Java

The move method accepts three arguments. The 1st and 2nd being the source and target Path attributes and the 3rd being the replace option. import java.nio.file.*;import static java.nio.file.StandardCopyOption.*;public class FileMove{

Merge Two Dictionaries in Python

The Dictionary class in Python provide an update() function that allows you to merge two dictionaries. For example: employeeScore = { ‘Emp1’:100, ‘Emp2’:98, ‘Emp3’:96}employee2019Score= { ‘Emp1’:101, ‘Emp2’:104} To merge, just