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Wednesday, December 30, 2020

Top 10 JavaScript Frameworks and Libraries for FullStack Developers in 2021 - Best of Lot

There is no doubt that JavaScript is now the #1 programming language in the world and also the king of web development. If you want to become a web developer who can quickly create websites like you see on the internet, then a good knowledge of JavaScript and various, popular JavaScript web development frameworks is essential for you. These frameworks have completely changed the way people developed web applications a decade ago. After node.js, it's even possible to create a complete web application from front-to-back using just one programming language, JavaScript. That's why it has become the preferred programming language of all Full-stack Web Developers.

Top 10 Open Source Frameworks & Libraries for Java Web Developers [UPDATED]

Java programming language and platform has been fortunate in terms of frameworks, standards, and libraries, I guess which is one of the important reasons for its huge success. Apart from standard frameworks like Swing for desktop GUI application, JavaFX, Servlets and JSP, EJB, and JSF, there are a lot more open-source frameworks and libraries available for Java programmers. These Open source framework, not only helps and speed up development but also enforce to use best practices required to build enterprise Java application and desktop application.

Tuesday, December 29, 2020

Top 10 Frameworks & Libraries Programmers can Learn in 2021 [UPDATED]

Hello Guys, we are just a few days away from 2021 now, and many of you might have already made your goals about what to learn in 2021, but if you haven't, then you have come to the right place. In this article, I am sharing some of the best frameworks and libraries for web development, mobile app development, and big data, an application developer can learn in 2021. The New Year will be all about the mobile. Machine learning, and next-generation web with a greater focus on big data technologies like Hadoop and Spark, but you can still learn the popular Java and Web development frameworks like React, Node.js, Spring Boot to take your career to the next level. These frameworks are tried and tested and will be here for at least the next 5 years to come.

Sunday, December 27, 2020

Difference between save(), saveOrUpdate() and persist() in Hibernate Session

The Session interface in Hibernate provides a couple of methods to move an object from a new or transient state to a persistent state e.g. save(), saveOrUpdate(), and persist() are used to store an object into the database, but there are some significant differences between them. The Session.save() method does an INSERT to store the object into the database and it also returns the identifier generated by the database. On the other hand, saveOrUpdate() can be used to reattach a detached object in Hibernate Session i.e. it can do INSERT or UPDATE depending upon whether an object exists in the database or not. 

Saturday, December 26, 2020

10 Free Java Programing Books for beginners - download, pdf and HTML

Every Java programmer loves free eBooks on Java, don't you? When I shared my collection of top 10 Java programming books, one of my readers asked me to share some free Java books as well. Doing a quick search on the internet reveals lots of free books, resources, and tutorials to learn Java. I have chosen some of the good Java books, which are FREE, available for download or you can read it online in HTML or PDF format. These books are an excellent resource for any Java beginners, as well as an experienced programmer, and since they are free, it makes absolute sense to have a look on this before buying any other book in Java.

Friday, December 25, 2020

Top 10 Programming Languages to Learn in 2021 [UPDATED]

Hello guys, finally, 2020 is coming to an end, and 2021 is approaching fast. This is when most of us start making our goals like physical goals, educational goals, and financial goals. As a programmer, one of our goals is to learn new technologies and programming languages, but which languages should you learn? Since acquiring a programming language requires both time and patience, you should learn a language worth the effort; I mean., it can reward you with a better job and career growth. In this article, I will share with you the top 10 programming languages you can learn in 2021 to get a job in your favorite companies like Google, Microsoft, and Facebook.

Wednesday, December 23, 2020

Top 5 Spring Framework Books for Java developers (Includes Spring Security and Spring Boot) - Best of lot

Spring framework is one of the most famous structures in the Java world, which used to develop Java application, both core Java and web application. It is also one of the most job oriented skills for Java developer; hence many beginners and intermediate Java programmers try to learn the Spring framework on their own. Though there are some excellent Spring training courses available online, books are still the most popular and preferred way to learn Spring frameworks like Spring core, Spring Boot, Spring MVC, Spring Batch, or Spring Security.  I often receive queries for Spring book recommendations e.g., which Spring book is suitable for beginners, or which Spring book is good for intermediate and advanced developers, which book should I read to learn Spring boot, Spring Cloud, Spring Batch, or Spring security, etc.?

Monday, December 21, 2020

java.lang.ClassNotFoundException: org.Springframework.Web.Context.ContextLoaderListener [Solution]

Problem : You are getting java.lang.ClassNotFoundException : org.Springframework.Web.
Context.ContextLoaderListener in your Spring-based Java Web application.
Cause: This error comes when you are using the Spring MVC framework in your Java Web application and configured org.springframework.web.context.ContextLoaderListener as a listener in your deployment descriptor also known as web.xml, but the JAR which contains this class is not available in the web application's CLASSPATH.

Top 5 Cloud Computing Books for Beginners to Read in 2021

Hello guys, if you want to learn Cloud Computing in 2021 and looking for the best online resources then you have come to the right place. Earlier, I have shared the free cloud computing courses and today, I am going to share the best book to learn Cloud computing in 2021. These books are written by Cloud Computing experts and trusted by thousands of people who want to learn Cloud Computing and public cloud platforms like AWS, GCP, and Microsoft Azure. If you don't know, Cloud computing the field of using a network of remote servers which are powerful computers that work twenty-four hours in a data center somewhere in the world, and you can host your website, data, files on that computer and use it remotely.

Sunday, December 20, 2020

Top 20 Hibernate Interview Questions with Answers for Java Programmers

Hibernate is one of the most popular persistent frameworks in the Java world. Hibernate offers an object to relational (ORM) solution which frees Java developers from writing tedious, hard to read, and cluttered JDBC code converting SQL columns into Object properties. Apart from freeing Java developers from writing JDBC and database interaction code, Hibernate also offers the out-of-box solution on caching, proxying, and lazy loading which drastically improves the performance of your Java Web application. Given its importance in the Java Web application development field, Hibernate has become one of the most sought-after skills and goes hand in hand with Spring framework. That's why Spring and Hibernate interview questions are also very popular in Java interviews, particularly for web development positions.

Thursday, December 17, 2020

How to test REST API from Command Line using cURL command in Linux

The curl or cURL command of Linux is a compelling and versatile command which allows you to send sophisticated HTTP request right from your Linux command line window. You can use the cURL command to test your RESTful Web Services by sending GET and POST requests, doing authentication, saving a cookie in the file, etc. The curl command is, in fact, the go-to tool for many Java and Spring developers working in web applications and consuming data from the secured RESTful Web Services. Still, you can also use it to test your simple REST Web APIs without security. I have used it many times to check if our Web service is up or not, or is there any error while accessing those services.

Tuesday, December 15, 2020

5 Best Spring Professional Exam Certification Resources (VMware EDU-1202) - Guides, Courses, Books, and Tutorials

Ever since Pivotal has announced that Spring training is not mandatory for becoming a Certified Spring developer (now VMware EDU-1202), more and more experienced Java programmers who have been using Spring for years are preparing for this certification exam. This is obvious because the expensive Spring training, which cost around 32000 USD in the USA and most of the western nations and about 50,000 INR in India, was the biggest hurdle in getting Spring certified and becoming a certified Spring professional. 

Sunday, December 13, 2020

Top 15 Spring Boot Interview Questions with Answers for Java/JEE Programmers

Hello guys, if you are preparing for your next Java interview and Job description mentioned about Spring framework, then you should also prepare some Spring Boot interview questions to avoid disappointment. The Spring Boot is now the standard way to use Spring framework for Java development and almost all the companies are moving from the traditional way of using Spring Framework to more modern Spring Boot way. Gone are the days, where questions like have you used Spring Boot was asked to the developer. Nowadays interview expects more knowledge of Spring Boot from candidates and there are reasons for it, which we'll explore in this article.

Wednesday, November 25, 2020

5 Things You Can Gift to Programmers, Software Developers, and Tech Geeks

Hello guys, its that time of the year again when you start thinking about gifts for your programmer boyfriend, husband, colleagues, or your near dear ones. Even if selecting presents or gifts were not tough, if your friend happened to be a programmer, it becomes slightly tougher. You might have heard that Programmers are aloof, nerd, and tech freaks, well, you heard it right. Programmers prefer to be alone in their own world, but they also like gifts, and you got it right; they are a nerd, so they love books, gadgets, music, and something which helps them to learn something, like a Udemy, Educative, or PluralSight membership.

Tuesday, November 3, 2020

Top 5 Design Patterns Books for Java Developers - Best of Lot

Design patterns are an essential topic for object-oriented programmers, like Java and C++ developers. It becomes even more important as your experience grows because everybody starts expecting a lot more from you in terms of writing quality code. I often receive emails from intermediate and senior Java developers about progressing to the next level, like how to become Tech Lead, Team Lead, or a software architect; knowledge of design patterns play an important role in taking more technical responsibility. While the GoF book is the bible for object-oriented design patterns, in my opinion, it is a bit too dry and academic.

Wednesday, October 21, 2020

Top 10 Spring MVC and REST Annotations with Examples for Java Programmers

Hello guys, welcome to my third article on exploring essential annotations from the Spring framework, the most popular framework for Java development. In the first article, I have shared some of the most useful Spring Framework annotations, which were based upon Core Spring functionalities like dependency injection, inversion of control, and configuration, and in the second article, you have learned about important Spring Cloud annotations like @EnableConfigServer, @EnableEurekaSever, and @EnableDiscoveryClient. Now that you know those essential Spring annotations it's time to move towards Spring MVC and REST, one of the most used parts of Spring Framework.

Sunday, October 18, 2020

Top 5 Books to learn Scrum, Sprint, and Agile in 2021 - Best of Lot

Hello guys, Are you a senior Java developer who wants to become a Scrum Master to advance in your career? Well, at this time, a person needs to wear many hats for job security. You not only have to perform your duty as a Software developer, I mean coding and debugging, but also need to support your application as Level 2 or Level 3 Support. You also need to wear project management or product development hat, which involves talking to stakeholders and clients. If this is not enough, you may need to play the role of Scrum master in your daily Scrum meeting and drive your Sprint review and Sprint planning meeting. To do all these, you must understand Agile methodologies and how the process works.

Saturday, October 17, 2020

Top 5 Data Visualization Tools every Data Analyst Should Learn

Hello guys, If you are learning Data Visualization and looking for the best tool for the job then you have come to the right place. Earlier, I have shared the free Data Analysis courses and today, I am going to share the best Data Visualization tools for Data Analysts and Data Scientists to learn. Data Visualization is one of the most in-demand skills in today's data-centric world. More and more companies are tapping on their data to find opportunities and this is increasing demand for Data Analysts who can tell the story from their data. 

Friday, October 16, 2020

Top 5 Essential Machine Learning Algorithms Data Scientists Should Learn

Hello guys, you may know that Machine Learning and Artificial Intelligence have become more and more important in this increasingly digital world. They are now providing a competitive edge to businesses like NetFlix's Movie recommendations. If you have just started in this field and looking for what to learn then I am going to share 5 essential Machine learning algorithms you can learn as a beginner.  These essential algorithms form the basis of most common Machine learning projects and having a good knowledge of them will not only help you to understand the project and model quickly but also to change them as per your need.

Friday, October 9, 2020

Top 5 Amazing Gifts for Programmers, Coders, and Software Developers

If you are planning for a surprise gift to your programmer boyfriend and husband on this holiday season like Black Friday, on Christmas, or New Year, or maybe on his next birthday, but not sure what to gift, then you have come to the right place. In this article, I am going to share some of the best gifts ideas for programmers and developers, gift which every programmer wishes for. To be honest with you, buying a gift is easy, but finding the right gift is very tough. I have spent countless hours on the internet to find a perfect gift for one of my colleague's husband, and this article is a result of that research.

Thursday, October 8, 2020

Top 10 REST API, Microservices, and RESTful Web Services Book for Java Web Developers

In recent years, REST has become the standard style for developing web services, also known as RESTful Web Services. These web services take advantage of REST principles, which leverages all goodness of HTTP to provide scalable and robust web services. As a Java Web developer, it's high time that you get familiar with the REST concepts and the REST style of developing web services in Java, also known as RESTful web services, and nothing is better than to start with a good book. I often receive a request about which book should I read to learn REST? Or what are some best books to learn to develop RESTful Web services in Java, etc.? In this article, I will suggest some books which will teach you both designing a REST API and developing RESTful web services in Java.

Thursday, October 1, 2020

Top 10 RESTful Web Service Interview Questions for Java Developers

REST is an architectural style of developing web services that have become immensely popular in the last couple of years and consequently gained a lot of importance in core Java and Java EE interviews. If you are a Java web developer, then you are most likely to see a couple of questions from web services every time you go for a Java web developer interview. One of the most frequent ones is the difference between REST and SOAP web services, which I have recently answered there, but there are a lot many other good questions I have collected from friends and my readers, which I have not yet published. In this article, I am sharing those questions, mainly based on REST-style web services for your practice and preparation.

Wednesday, September 30, 2020

Top 18 Java Design Pattern Interview Questions Answers for Experienced

Design pattern interview question in Java
Hello guys, if you are preparing for Java interviews and looking for frequently asked design pattern interview questions then you have come to the right place. In the past, I have shared the best courses for Java interviews, and today, I am going to share popular design pattern questions from Java interviews. You can use these questions to both practices and check your knowledge about OOP design patterns. Both OOP and GOF design pattern interview questions are an integral part of any good list of core Java interview questions. Java is a popular Object-oriented programming language and has lots of design patterns and design principles, contributed by many developers and open-source frameworks.

Tuesday, July 14, 2020

3 Best books to prepare OCAJP 7 (1Z0- 803) Exam - Java SE 7 Certification

Even though the latest OCAJP exam is OCAJP8, the OCAJP7 still the most popular one, at least from the email I receive, I can say that more readers ask for OCAJP7 recommendations and preparation tips than OCAJP8. I have always said the three golden rules of success in the OCAJP exam are selecting a good book, writing programs, and doing mock exams like Whizlabs or Enthuware practice tests. In this article, you will find some good OCAJP7 books to deal with the first part. For those, who are new to the structure of Java SE 7 certification, it's now divided into two parts, the OCAJP and OCPJP. The OCAJP stands for Oracle Certified Associate Java Programmer and it's an associate-level exam.

Monday, April 6, 2020

5 Best books to learn JDBC - Java Programming

The JDBC (Java Database connectivity) is one of the vital API in Java programming language which allows a Java program to connect to any database, like Oracle, Microsoft SQL Server, MySQL, PostgreSQL, SQL Lite, Sybase or any other relational database. It's an essential API to learn and master for both core Java and Java EE professionals, given the ubiquitous nature of Database in real-world applications. Despite its importance, many Java developer lacks essential JDBC skills, like they are not familiar with Connection, Statement, connection pool, calling stored procedures, and executing a transaction in JDBC.