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Handy Function to Test for Email Validity

Use this nifty function to check the validity of an email address. CREATE FUNCTION [dbo].[fnCheckEmail](@Email VARCHAR(255)) RETURNS BIT AS BEGIN DECLARE @ValidEMail BIT IF @Email IS NOT NULL SET @Email

DevX - Software Development Resource

Seamless Upgrade to Angular 5

In this article we’re going to explore Angular 5 up-gradation and Changes that would be encountered during the migration. Take a look at the features that make Angular 5 a great option for your development projects.

Setting the Log Level in Java

We have been using logging in Java and different code requires different levels of logging. Hence these Levels will come in handy. Code sample: import java.util.logging.Logger;import java.util.logging.Level;public class JavaLogger{ public

Assuming Char Represents One Character

Do not assume char represents only one character: “uD83DuDC31”.length() == 2 The escape sequence represents the Unicode code point 0x1F431 in UTF-16 as 2 chars. So even though this is

Creating a JSON Object Using Java

JSON is being widely adapted by the industry for easier transformation of data. Using the json-simple-1.1.1.jar in the classpath will provide you with the basics of JSON and its functionality.

Load JavaScript Asynchronously on a Web Page

By default, JavaScript script files are loaded synchronously in the page execution and thus are bound to slow down the page. You can asynchronously load the scripts by simply adding

A Better Way to Achieve Random File Access

RandomAccessFile raf = new RandomAccessFile(f, ???r???);for (???) { raf.seek(pos); byte b = raf.readByte();} Despite its name, the java.io.RandomAccessFile class is not very convenient for accessing files in a random-access manner,

How to Avoid Cloning in Java

Cloning is the easiest way of copying a class. With this, however, you also have all properties being passed on to the cloned class, which probably is a security hassle.

How to Restrict Input Text to Characters in a Text Box

Use the KeyPress event to check for the keys pressed. See below for an example: private void textFirstName_KeyPress(object sender, System.Windows.Forms.KeyPressEventArgs e) { if ( !( char.IsLetter(e.KeyChar) ) ) { e.Handled

Understanding the Collection.removeIf Method

Collection.removeIf is a very powerful method that acts on a condition. In the code sample below, there is a list which has few elements in it and the condition is

How to Include All Values in a Date Range

Sometimes when doing a search for data between date ranges, some of the data is omitted because the search doesn’t include the whole last day’s values. Here is a small

Explore the Difference Between ID and Class

These two selectors often confuse beginners. In CSS, the difference between them is that the class is represented by a dot “.”, while ID is represented by a hash “#”.

Understanding the Current Stack Under Execution

Most of the time, you probably want to understand the flow to solve certain problems. Java provides an easy approach to knowing the current stack. Code snippet: public class DumpStack{

Format the Console.Write Responses

We use string.format to format the data written to the console using the console.write or console.writeline commands. However, it isn’t indented well to make it readable. C# allows you to

Should Log Instances Be Static or Not?

Private static final Log log = LogFactory.getLog(MyClass.class); It is a good idea to store the log instance in a static final variable, because: No problems with serializable classes Initialization cost

How to Check Whether a Number Is Prime

Java has an API called BigInteger and it is easily able to identify if the number under consideration is a prime number or not. Code snippet: import java.math.BigInteger;public class ProbablePrime{

DevX - Software Development Resource

MySQL & MariaDB Databases with Superpowers: Say Hello to Reinvented dbForge Tools for MySQL

Devart introduced a significant update of dbForge tools for MySQL with cutting-edge connectivity and compatibility options and a new, more secure than ever, activation procedure. Devart, a Czech software vendor of database tools and data connectivity solutions, has rolled out greatly improved, crisp and clean dbForge tools for MySQL after the recent grand update of dbForge Studio for MySQL. All the tools have been packed with the powerful connectivity and compatibility options which enable users to work with a greater number of databases and database engines. In addition, an activation mechanism has received an extreme makeover to ensure the maximum possible security and reliability of the tools. Here is a closer look at what???s new in dbForge tools for MySQL: 1) Connectivity and Compatibility. dbForge tools for MySQL now support the following  databases and cloud services:MariaDB 10.1MariaDB 10.2NDBCLUSTERGoogle Cloud PlatformAlibaba Cloud 2) Trial Product Activation. The new activation process that traditionally comes after a 30-day trial period is more secure and reliable than ever before. It protects users against potential piracy and ensures that they are using an authentic product that can be trusted with their business data. 3) New Look and Feel. Among other updates, Devart redesigned the interface of MySQL tools to give them a cleaner look and feel. 4) Other Improvements include Compliance with the Federal Information Processing Standard. Onwards to more tidbits about what’s been changed with this release, please visit the following History pages:dbForge Schema Compare for MySQLdbForge Data Compare for MySQLdbForge Data Generator for MySQLdbForge Query Builder for MySQL To see the full list of updates implemented in dbForge Studio for MySQL v.7.4, please visit: https://www.devart.com/dbforge/mysql/studio/. About DevartDevart is one of the leading developers of database tools and administration software, ALM solutions, data providers for various database servers, data integration and backup solutions. The company also implements Web and Mobile development projects. For additional information about Devart, visit https://www.devart.com/.

Does Your Timezone Support Daylight Saving Time?

You may want to know if your timezone supports Daylight Saving Time programmatically. This can be easily determined with the code below: Listing 1. Sample Code import java.util.TimeZone;public class DaylightSavingsTime{