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Understanding the Java.time Package

import java.time.*;import java.time.format.*;class LocaleDate{ public static void main(String args[]) { LocaleDate localeDate = new LocaleDate(); localeDate.proceed(); } private void proceed() { DateTimeFormatter formatter; //Creating an instance to the current time

Escape Characters with the “@” Symbol in C#

Use the “@” symbol to prefix a string that has characters. You do not have to escape the characters in the string. For example, instead of: Var filePathString = “C:\mydocs\share\audit.docx”;

Compare Only Alphabetic Values

You can force a like condition to compare only alphabetic values. Here is how: ORDER BY CASE WHEN LTrim(RTrim(Place.Name)) NOT LIKE ‘%[^0-9]%’ THEN 1 ELSE 2 END, Place.Name

Avoid Poor Use of Reflection

Class beanClass = ???If (beanClass.newInstance() instanceof TestBean) ??? The above code is tries to use the reflection API, it tries to find a way to check for inheritance, but it

Validating an URL in Java

Java has some predefined ways of validating an URL. Here is a code snippet: import java.net.*;public class URLValidator{ String validURL = “http://google.com” ; String inValidURL = “httpgoogle.com” ; public static

Getting All Available Time Zones in Java

The package java.time has APIs to get all the available zone ids. The API is getAvailableZoneIds(). import java.time.*;import java.util.*;public class AllTimeZones{ public static void main(String args[]) { AllTimeZones allTimeZones =

Fetching Common Records Between Two Tables

You can fetch records that are common to one or more tables by using INTERSECT. Here is a small example: Select * from EmployeesIntersectSelect * from RetiredEmployees

Avoid Out of Memory Conditions

Byte[] pdf = toPdf(file); Here, a method creates a PDF file from some input and returns the binary PDF data as a byte array. This code expects that the generated

Smooth Code Review Process Directly in Visual Studio with Updated Review Assistant

Devart has released a greatly improved Review Assistant 4.0, a code review tool for creating review requests and responding to them without leaving Visual Studio. The tool received numerous review workflow enhancements including new statuses and comments, a single diff-tool window to view changes, improved code review board and many others.

Optimize Your SQL Queries with Schema Names

SQL Server, by design, caches query plans for queries. For reuse of cache, the best practice would be to include the schema name in the query. For example: select *

CSS Debugging Tools

It’s always a good idea to get an instant preview of the layout while optimizing your CSS code. It helps you to understand and debug CSS styles better. There are

Understanding the Double Colon in Java

Iterating a list and printing the values is very simple, as illustrated by the code snippet below. import java.util.*;public class DoubleColon{ public static void main(String args[]) { DoubleColon doubleColon =

Understanding the Usage of the OffsetDateTime Class

This class belong to java.time package. There are many options available, but here we will be using the ZoneId to get the current time. import java.time.*;public class UsingOffsetDateTime{ public static

Setting a Default NULL Date in SQL

Setting a default NULL Date in SQL is quite easy, you just need to concentrate. A statement similar to the following will convert any NULL value inside the specific DATE

Dangers of Choosing the Wrong Class Loader

This code uses the class loader that loads the current class and getClass() could return something unexpected, like a subclass, or a dynamic proxy. This is hardly ever what you

Switch to HTTP2 for Faster Websites

HTTP2 is binary protocol released some time after 2015. It is completely multiplexed and allows you to send multiple requests via a single TCP connection. It also reduces additional round

The Typing Game

https://play.google.com/store/apps/details?id=com.steevjames ‘The Typing Game’ helps improve ones skill in typing in mobile. It is a fun, addictive and educational game. Compete with you friends and have fun !   * This is a small sized game ( Just 1 MB ).* The game does not have any sorts of advertisements.* It is a very user friendly app.* The Typing Game does not require any permission to install or run making it fully safe.* The game uses a simple approach that is easily understandable so even small children can use it.* The app is rated for age 3+ in google play.* This game does not run in the background.

Enjoy High-Performance Connectivity to MySQL 8.0 with Updated dotConnect for MySQL

Devart introduced a significant update of dotConnect for MySQL, a powerful ORM-enabled data provider, with the full support for recently enhanced MySQL 8.0. Devart, a Czech software vendor of data connectivity solutions and database tools, has rolled out a greatly improved version of dotConnect for MySQL, a fast and advanced ADO.NET provider. Following the recent update of MySQL Server by Oracle, the tool now fully supports the latest version of MySQL with improvements across the board. Here???s the scoop on the key enhancements implemented in new dotConnect for MySQL: MySQL 8.0 support for seamless MySQL-based application developmentThe support for caching_sha2_password, the new default MySQL authentication pluginExtended list of MySQL charset collations Improved performance of SSIS Lookup component The above represents some of the highlights. Drill further into the complete list of other useful features of dotConnect for MySQL at https://www.devart.com/dotconnect/mysql/ . About Devart Devart 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/ .

Explore the Java Collections Rotate Method

See how to use the rotate method in Collections to rotate the elements to a specified position. import java.util.*;public class UsingRotateInCollections { public static void main(String args[]) { UsingRotateInCollections usingRotateInCollections

Disappointing story on memory optimization

Not all stories need to be success stories. Reality is also not like that. We would like to share a true, disappointing story (but a phenomenal learning experience) that may be beneficial to you. This is a story about optimizing memory utilization of a web application. This application was configured with a lot of memory (4GB) just to service handful of transactions/sec. Thus, we set out to study the memory utilization patterns of this application. We captured heap dumps of this application using ???jmap??? tool. We uploaded the captured heap dump to HeapHero tool. HeapHero is a heap dump analysis tool just like Eclipse MAT, JProfiler, Yourkit. HeapHero tool profiled the memory and provided statistics on total classes, total objects, heap size, histogram view of large objects residing in the memory. On top of these traditional metrics, HeapHero reported the total amount of memory wasted due to inefficient programming practices. In modern computing, considerable amount memory is wasted because of inefficient programming practices such as: Duplicate object creation, suboptimal data type definitions (declaring ???double??? and assigning only ???float??? values), over allocation and underutilization of data structures and several other practices. 

Replace Text with Image in CSS

The snippet of code below is a common practice to replace title from a text-based title to an image: h1 {text-indent:-9999px;background:url(“title.jpg”) no-repeat;width:100px;height:50px;} Explanation: text-indent:-9999px; throws your text title off screen,