5 Must Read Books to become Software Architect or Solution Architect

I receive a lot of queries from senior Java developers, who aspire to become software architect or solution architect e.g. what can they do to become a software architect? Which books, resources, or certifications can help? and general queries like how much experience you need to become software architect etc. In the past, I have been suggesting them individually about some books to read to expand their knowledge base and look at the software from architecture and design perspective and this article is a compilation of many of such suggestions. Since a lot of books can confuse, I have only select 5 best and must-read books from software architect perspective.

Top 5 Online Courses to Learn Web Development in 2018

Udemy is running their flash sale this weekend, where they are offering all the courses in just $10.99 and I have been spending a lot of time going through their website to buy some of the top quality courses in this sale. If you look at the price, its nothing, if you escape snakes for 1 day you can buy a course in Udemy to learn and the best part of this is that you get the lifetime access of course. So you can use it whenever you get time, maybe this week, this month, or sometime later. I love learning and for the most part of my life, I learned by reading books but ever since I come across online courses on Udemy and Pluarlsight, I have spent most of my time learning through online courses. They are the best way to start with the new technology and get yourself up and running in no time.

5 React Native Courses to Learn Android and iOS development with JavaScript - Best of Lot

If you are a web developer who wants to go into the massive world of mobile app development but don't want to spend time learning Java or Kotlin for Android development, or Objective C or Swift for iOS development then React Native could be a great tool for you. React Native is an extension of React, a popular JavaScript framework to develop web applications, which allows you to build native Android and iOs applications in JavaScript. Unlike Ionic and Cordova which promotes write once run everywhere but doesn't offer you to create a native app, React Native does convert your code into native code, especially for GUI.

Top 10 Highest Paying Technical Jobs for Software Engineers, Programmers

If you are a computer science graduate or someone who is thinking to make a career in software development world or an experienced programmer who is thinking about his next career move but not so sure which field you should go then you have a come to the right place. In this article, I will tell you the top 10 highest paying technical jobs you can aim for. All you need is some programming experience and a passion for learning. Particularly the Machine learning and Data science field looking very promising for both beginners and experienced programmers. On average a machine learning specialist and Data Scientist make around anywhere from $110,000 USD to $120,000 and there is a huge demand for them and if you are interested in solving real-world problems they present an exciting opportunity.

10 Free Docker Container Courses for Developers to Learn Online

I have been answering a lot of questions about what programmers should learn in 2018 and Docker Container is one of such skill. Docker and containers are a whole new way of developing and delivering applications and IT infrastructure. In this post, I'll talk about what is Docker and why a programmer should learn Docker. In today's world of massive scalability, where every single mobile app and web application needs to support billions of users (think of Youtube, WhatsApp, Uber), software application development and deployment have become increasingly complex. Gone are the days when software is developed by a small team of onshore people.

Top 5 Java Design Pattern Courses for Experienced Java Developers

Hello guys, today, we'll talk about design patterns and some of the best online courses to learn design patterns in Java from scratch. If you are wondering what is a design pattern and why Java developers should learn them? then let me give you a brief overview. Design patterns are nothing but a tried and tested solutions of common programming problems, for example, the creational design patterns deal with the problems of object creation. They exist from a long time but made popular by famous Gang of four of Erich Gamma, John Vlissides, Ralph Johnson and Richard Helm in their classic 1994 book Design Patterns: Elements of Reusable Object-Oriented Software, also known as GOF design patterns. This book documented 24 design patterns which are reusable to solve common programming problems. 

Top 5 Java 9 Courses to Learn Online - Best of Lot

The year of 2017 was the year of releases for Java developer. With releases of JDK 9, Spring 5, Spring Boot 2.0 and Spring Security 5.0 there was so much to learn for Java developers and all at once, but like many others, I didn't make a good process and I am looking to turn it around in 2018. One of my top priority goal for New Year to learn new features of Java 9 as quickly as possible to write more about it. It's also important for you to learn Java 9 quickly to improve your career prospects.

Top 5 Professional Email Writing Courses for Programmers and IT Professionals

One of my readers emailed me a couple of days ago and asked If I could suggest something to improve his email writing skills? He says that he is very good at work and programming but sucks on writing emails and because of that he never gets the visibility he deserved, resulting in no promotion or career growth. This sounds me a very common problem, especially among programmers whose native language is not English, and who have never attended any business or email writing course. In fact, it was a problem with me as well but I slowly picked it up though I am still far behind with many people I know who have excellent email communication skills.

10 Courses to Prepare for Coding/Programming Job Interviews Online

To be honest with you, getting your first job is never easy. It is, in fact, the hardest task and you need to put your best effort to find a job in your dream company. Most of the computer science graduates dream of working for Google, Facebook, Amazon, Microsoft, and Apple but they often not able to clear their rigors coding interviews. The single most important reason for failing those coding job interviews is lack of knowledge and practice, hence it becomes increasingly important that you prepare hard in advance. Unfortunately, I learned this little too late, after spoiling my chances at Microsoft and Amazon but you can learn from my experience and prepare better for your programming job interviews.

Top 20 Spring REST Interview Questions Answers for Java Programmers

Hello guys, I have been sharing some REST with Spring tutorials from last a couple of weeks and today, I am going to share some of the frequently asked Spring and REST interview questions to Java developers applying for Web developer roles. Since Spring Framework is the most popular and the standard framework for developing Java web application and RESTful Web Services, a good knowledge of Spring core and Spring MVC is expected from any senior Java developer, but if the job description mention about REST and Web Services, you also need to be aware of how to develop RESTful Web Services using Spring Framework. From Spring 3.1, the framework has been enhanced a lot to support many features needed for RESTFul API out-of-the-box e..g HTTPMessageConverter can convert your HTTP response to JSON or XML by just detecting relevant library in classpath e.g. Jackson and JAXB.

5 Courses to Learn Shell Scripting in Linux and UNIX Online

A huge chunk of a developer's time is wasted in trying to repeat tasks and commands, especially when it comes to working with a bunch of UNIX or Linux machines and a good knowledge of shell scripting can free you from such mundane task and give time to do some interesting stuff. If you don't know what is shell scripting then let me tell you is nothing but a program written using shell built-ins and Linux commands to automate things e.g. checking if a host is reachable or finding and deleting large files which are older than certain days or archiving them into another machine. Basically, it's a tool which allows you to automate boring and repeating task and that's the way programmers should work. They should not be repeating stuff, instead should be investing that time to create a script or program which can automate that task.

How to parse JSON with date field in Java - Jackson @JsonDeserialize Annotation Example

I have read many articles on parsing JSON in Java and most of them give examples where properties are either String or int, there are very few examples, where you will see the JSON string contains a date field and that's one important thing to learn. It's easy to parse JSON in Java using Jackson or Gson with just integer and string field but you need to do a little more work if your JSON contains a date field because everything in JSON is String but Java is a type based programming language, where Date is a type.

5 Courses to Learn Kotlin Programming language for Java and Android Developers

If you don't know Kotlin, it's a relatively new programming language that makes programming for Android or Javascript easy. Ever since Google announced Kotlin as the official language for Android Development, I received a lot of queries from my readers should Java developer learn Kotlin now? or which one is better to start with Android development, Kotlin or Java? I have answered that question in my last article but I am still receiving a lot of queries about learning Kotlin and whether Java developer should Learn Kotlin or not? Well, to be honest with you, being a Polyglot programmer i.e. a programmer who knows more than one programming language is important and distinguish skill. It not only widen your thoughts but also make you a better developer and that's why I recommend every Java developer to at least learn one more JVM language and Kotlin is a good one to start with.

Top 3 JVM languages Java Programmer Should Learn in 2018

If you are a Java programmer and thinking to learn some more programming language to expand your knowledge and skill, but not sure which programming language to choose then you have come to the right place. In this article, I'll share 3 JVM languages Java programmers can learn in 2018 and why you should learn them. Being a Polyglot developer is a good quality and often valued high on interviews. It also expands your thinking because different programming languages have different features which make certain things really easy.

Top 5 Selenium Webdriver with Java Courses for Testers and Developers to Learn Online

The days of manual testing is limited as more and more companies are shifting towards automation testing. This means all manual testing QAs needs to learn new test automation skills e.g. Selenium, Cucumber, JUnit, and TestNG to give their career a boost. If you are manual testers or non-programming testers interested in learning test automation, or a freshers/graduates who want to kick start their career in automating testing then you have come to the right place. In this article, I am going to share some of the best courses to learn Selenium Webdriver with Java and other automation testing technology e.g. JUnit, Cucumber etc.

Java 9 Example - Factory Methods for Collection - Creating Unmodifiable List, Set, and Map

Hello guys, this is my first article in Java 9 features on this blog and today you'll learn about my favorite feature "factory methods for collection", which is introduced as part of JEP 269. The JEP stands for JDK enhancement proposal. If you have worked in Groovy or Kotlin then you know that how easy is to create the list with elements using collection literals e.g. to create a list of 1, 2, 3 you can simply write val items = listOf(1, 2, 3). Unfortunately, Java doesn't support that yet but things have been improved with the factory methods for collection in JDK 9 and it's almost like that. JDK has added static factory methods like of() on to basic Collection interfaces which you can use to create a list of items.

Kotlin vs Java - Which language Android Developers should Learn?

Ever since Google announced Kotlin as the official language for Android development in Google IO 2017, programmers, who want to become an Android Developer are in dilemma. Now the big questions in front of them are whether they should learn Kotlin or Java? The answer to this questions depends upon your profile. If you are a complete beginner who wants to learn Android development then my answer is Java, but if you are Java developer who wants to jump into the lucrative market of Android App development then my answer is Kotlin. I'll discuss why beginner Android programmer should start with Java and why Java developer should learn Kotlin in this article.

5 Free Git Courses for Programmers to Learn Online

One of my goals in 2018 is to learn and master Git and I have been searching some good tutorials and courses to start with. The Internet is full of git tutorials and a simple Google search will leave you thousands of tutorials but the big question mark is where do you start? It's easy to pick a tutorial or a blog post if you have some background about what is Git, what it does? and how to use it but if you don't have much background then you need a course which can tell you all the information from the ground up. I personally like learning from a book or an online course before moving to blog posts as they were often well structured. When you search for Git courses in popular online course websites e.g. Udemy, Pluralsight or Coursera, you will find some good courses e.g. Git Complete: The Definitive Guide on Udemy and Git Fundamentals from Pluralsight which will teach you everything about Git step by step. These are excellent resources to start with Git.

Top 5 Hibernate and JPA Courses for Java Developers to Learn Online

Hibernate is one of the essential frameworks for Java and Java EE or JEE programmers, especially if you are working on the server side of a Java web development project. It's an ORM tool or a framework which allows you to deal with only objects while Hibernate takes care of your data on your behalf. For example, instead of writing classes with SQL to load, save, and update data using DAO design pattern, you can simply use Hibernate framework in your project. It will allow you to deal with just objects while it will load, save, and update data in the background. Instead of you loading and saving data to/from the database and then populating objects, Hibernate just give you a readymade object and also takes care of updating data when the state of object changes. Btw, this is just one benefit of using Hibernate, another one is that it provides inbuilt caching.

7 Reasons to Use Spring to develop RESTful Web Services in Java

REST has now become a standard way to develop web services and when it comes to Java, there are many frameworks and library available e.g. JAX-RS, Restlet, Jersey, RESTEasy, Apache CFX etc, but I encourage Java developers to use Spring framework to develop RESTful web services. But, some of you might ask, why use Spring Framework to develop RESTful web services in Java? What is the advantage and why it's better than other frameworks and libraries available out there? Well, the most important reason I think to use Spring for developing RESTful web service is that you can use your Spring MVC experience to develop RESTful web services.

How to deal with ConcurrentModificationException in Java? Beware while removing elements from ArrayList in loop

One of the common problem while removing elements from an ArrayList in Java is the ConcurrentModificationException. If you use classical for loop with the index or enhanced for loop and try to remove an element from the ArrayList using remove() method, you will get the ConcurrentModificationException but if you use Iterator's remove method or ListIterator's remove() method, then you won't get this error and be able to remove the element. It's an unwritten rule in Java that while looping through the list, you should not add() or remove() elements until the collection supports fail-safe Iterator e.g. CopyOnWriteArrayList, which operate on a copy of list rather than the original list.

10 Unit Testing and Integration Tools and Libraries for Java Developers

In last a couple of weeks, I have written some articles about what Java developer should learn in 2018 e.g. programming languages, libraries, and frameworks, but if you have just one thing to improve or learn then that must be your automation testing skills. Testing is one of the disciplines which separates professional developers with amateur ones. It's not about following TDD, BDD, or whatever testing methodologies but at the very minimum level, you must write code to test your code automatically. Many Java developers write unit tests and integration tests which automatically run during build time, mostly by using continuous integration tools like Jenkins or TeamCity.

How to ignore unknown properties while parsing JSON in Java - Jackson @JsonIgnoreProperties Annotation Example

One of the common problem while parsing JSON in Java using Jackson API is that it fails when your JSON contains unknown properties i.e. your Java class doesn't have all the field corresponding to all JSON properties. For example, if you are consuming JSON from a REST Web Service and tomorrow they added a new field into JSON then your code will break because Jackson will throw UnrecognizedPropertyException and stop parsing JSON. This is troublesome and can cause problems in production if you are not aware. I  have faced this issue when a developer shipped the code to consume data from REST API without proper handling unknown fields.

3 Ways to Learn Spring Core, Spring MVC, Spring Security, and Spring Boot Framework

If you are a Java developer and wants to learn Spring framework then you have come to the right place. In this article, I will share three ways to learn Spring framework, but before that let's understand what is a spring framework and why Java developers should learn Spring framework? Well, Spring is a framework which assists you to develop Java application by following some best practices, particularly the principle of dependency injection and inversion of control. As per this principle, instead of class asking for its dependency, the framework provides them at runtime.  Following these principles improves your code quality because it reduces coupling between different part of your applications e.g. between modules and classes, which makes them easier to test and develop.

10 Tools Every Software Developer/Programmer should know

Every trade has their tools and software development is no different. A good programmer or software developer generally know their tools better than others and also have access to more powerful and advanced tools than a average programmer, but there are certain tools which you expect every software developer should know and this list is all about such tools. In this list, I am going to share 10 essential tools, which I believe every programmer or software developer should know and know well.

Top 5 Java 8 Certifications Courses to Prepare OCAJP (1Z0-808) Exam Online

If you are preparing for Oracle Certified Java SE 8 Associate exam, also known as OCAJP 8 and OCPJP 8 with exam codes 1Z0-808 and looking for a decent online course to kick start with your preparation then you have come to the right place. In this article, I will share some of the best online courses to prepare for Java SE 8 certifications. Btw, first of all, configurations to make the right decision. If you are a Java developer then certifying for your skill will not only distinguish you from millions of other non-certified Java programmers but also improve your knowledge and understanding of Java SE 8. If you are looking for a job then this can help you to get a better job and if you are looking for a career growth e.g. to become senior Java developer, these certifications can help you to get a promotion.

10 reasons to Learn Scala Programming Language

One of the questions my reader often ask me is, shall I learn Scala? Does Scala has better future than Java, or why Java developer should learn Scala and so on. Well, there can be many reasons for learning Scala e.g. you are forced to learn because it been used in the new company you joined or your solution architect decided to use it, but that's a different story. Here, we'll talk about reasons which encourage Java developers to learn Scala.  Scala has emerged as one the most powerful Java alternative in recent times. It's been the JVM language of choice, leaving Groovy and Clojure way behind, and preferred as the language people want to write most code in.

How to purchase a Spring Professional Certification Voucher Online?

So, you have been preparing for Spring certification for quite a sometime and now you feel you are ready to take the exam and it's time to buy the Spring certification voucher and schedule your exam. In this article, I'll show you how to buy the Spring certification voucher online. But, before purchasing a voucher, I would like to remind you that Spring certification voucher is only valid for 90 days, after that it will expire. So, it's best to buy the voucher only if you are ready for the exam i.e. you have gone through several Spring Mock tests and practice tests given in Spring study guides and you are consistently scoring over 80% on them.

Top 5 Free Data Structure and Algorithm Courses for Java and C Programmers

Data Structure and Algorithm is one of the essential topics for programmers, both to get a job and do well on Job. A good knowledge of data structure and algorithm is the foundation of writing good code. If you are familiar with essential data structures e.g. array, string, linked list, tree, map and advanced data structure e.g. tries, AVL trees etc and know when to use which data structure and compute the CPU and memory cost of your code in terms  Even though you don't need to write your own array, linked list or hashtable, given every major programming SKD provides them e.g. JDK or C++ STL library, you will need to understand them so that you can use them in right place. Using a right data structure can drastically improve the performance of an algorithm.

How Http Basic Authentication works in Spring Security?

In the last article, you have learned how to enable Http basic authentication in Spring security based Java application and now we'll go one step further to understand how exactly http basic authentication works in Spring security. If you remember, when you use HTTP Basic for authentication purpose the client e.g. browser or a rest client sends login credentials in http request header. The header is aptly named as "Authorization" and it contains based 64 encoded string which is created by concatenating username and password using a colon. For example, if the username is "johnsmith" and password is "JOHN3214" then they will be concatenated as "johnsmith:JOHN3214" before encoded using base 64 encoding algorithms.

What is a Functional interface in Java 8? @Functional Annotation and Examples

The functional interface is one of the most important concepts of Java 8 which actually powers lambda expression but many developers don't put enough effort to understand it and spend time learning lambda expression and Stream API without first understanding the role of functional interface in Java 8. Unless you know what is a functional interface and how lambda is related to it, you can't use powerful features of Java 8 e.g. lambda expression and stream API. Without knowledge of functional interface, you won't be able to understand where you can use a lambda in the code but also you will struggle to write lambda expression the method is expecting, hence, it's important to have a good understanding of functional interface in Java 8.

Top 5 Free Agile Courses for Programmers and Software Engineers

Technology is changing at a rapid pace and market conditions, tough competition, and time-to-market are some of the biggest concerns for today's organizations, especially for technology companies. In order to adapt this fast-changing environment, most of the companies are now using the Agile model of development, testing, and project management. This enables the organizations to efficiently cope with changes and deliver faster and that's why for a programmer or an IT professional, a solid knowledge of Agile methodologies and framework is important. It doesn't matter whether you know the Waterfall model of development or not but it does matter whether you have worked in an Agile environment or not. In order to educate programmers about Agile, I have shared some of the books to learn Agile in past and today I am going to share some of the free online Agile courses you can take to learn Agile methodologies at your own pace.

How to enable HTTP Basic Authentication in Spring Security using Java and XML Config

In the last article, I have shown you how to enable Spring security in Java application and today we'll talk about how to enable Basic HTTP authentication in your Java web application using Spring Security. I'll show you how to do that using both the Java configuration and XML configuration if you are using Spring Security 3.1 or lower version, but before that let's understand what is Http basic authentication and why do you need that? One of the most common ways to authenticate a user in a web application is by using form login i.e. you provide a login page and user will enter his username and password for authentication. This works great for human users but sometimes there are situations where you can't use a login form for authentication.

Top 20 Libraries and APIs Java Developer should know

One of the traits of a good and experienced Java developer is the extensive knowledge of API, including JDK and third-party libraries. I spent a good deal of time learning API, especially after reading Effective Java 3rd Edition, where Joshua Bloch has advised to use existing API for development rather than writing new pieces of code for common stuff. That advise making sense to me because of the testing exposure these 2nd party libraries get. In this article, I am going to share some of the most useful and essential libraries and API, a Java developer should be familiar with. Btw, I am not including frameworks e.g. Spring and Hibernate because they are pretty well known and have specific features.

Top 10 Java and Web Development Courses from Udemy

Hello guys, Happy New Year to all of you. I am sure you all have made your new year goals and resolutions e.g. what to learn in 2018. If you haven't then check out my post 10 Things Java programmer should learn in 2018 for some ideas. If you have already made your goal then it is time to think about how you are going to achieve it. For example, my top 3 goals in 2018 are to learn JDK 9, Spring 5, and Spring Security 5 but how am I going to learn them? Well, I like books and online courses and that's why I have been searching for some good courses on JDK 9 and Spring 5. Luckily there are some available in Udemy and the best part is that they are currently running a New Year Sale event where every single course is priced just $10, Yes you heard it right, just $10.99, even for a course whose original price is $200.

Top 5 Node.js and Express JS online courses for Web Developers

There is no doubt that JavaScript is the #1 Programming language in the world and Node.js is one of the biggest reason for that. Initially, JavaScript was considered just a client-side scripting language but Node.js has changed all that by allowing developers to create dynamic web pages on the server side using JavaScript. It is also rated as the most popular framework of 2017 on StackOverflow Developers survey. The most important benefit of Node.js is that it allows you to build a full stack application based on just one language, JavaScript. This is especially useful for start-ups which put a lot of emphasis on being able to iterate early and often.

10 Frameworks Java and Web Developers Should learn in 2018

First of all, wish you a very Happy New Year 2018. May God bless you to fulfill all your dreams. From last a couple of weeks, many of my readers are asking me questions on Facebook and Email that what should they learn in 2018? I have written a series of post to help them e.g. 10 things Java programmer should learn in 2018. In this article, I am going to share some of the most popular frameworks which you can learn in 2018. The framework is not just for Java developers but for any programmer. They are in good demand and learning them not only improve your chances of getting a better job but also opens new doors of opportunities.