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.
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.
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.
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.
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.
10 Examples of forEach() method in Java 8
From Java 8 onward, you can iterate over a List or any Collection without using any loop in Java. The new Stream class provides a forEach() method, which can be used to loop over all or selected elements of the list and map. The forEach() method provides several advantages over the traditional for loop e.g. you can execute it in parallel by just using a parallel Stream instead of regular stream. Since you are operating on stream, it also allows you to filter and map elements. Once you are done with filtering and mapping, you can use forEach() to operate over them. You can even use the method reference and lambda expression inside forEach() method, resulting in a more clear and concise code.
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.?
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.
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.
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.
Fibonacci Series in Java Using Recursion
Fibonacci series in Java
Write a Java program to print the Fibonacci series up to a given number or create a simple Java program to calculate Fibonacci number is common Java questions on fresher interview and homework. Fibonacci series is also a popular topic on various programming exercises in schools and colleges. Fibonacci series is a series of natural numbers where the next number is equivalent to the sum of the previous two numbers like fn = fn-1 + fn-2. The first two numbers of the Fibonacci series are always 1, 1. In this Java program example for the Fibonacci series, we create a function to calculate Fibonacci number and then print those numbers on Java console.
Write a Java program to print the Fibonacci series up to a given number or create a simple Java program to calculate Fibonacci number is common Java questions on fresher interview and homework. Fibonacci series is also a popular topic on various programming exercises in schools and colleges. Fibonacci series is a series of natural numbers where the next number is equivalent to the sum of the previous two numbers like fn = fn-1 + fn-2. The first two numbers of the Fibonacci series are always 1, 1. In this Java program example for the Fibonacci series, we create a function to calculate Fibonacci number and then print those numbers on Java console.
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.
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.
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.
How to Find Repeated Characters in Given String with Count in Java? [Coding Problem Solved]
This is another interesting coding problem or programming exercise for beginner programmers. How do you find repeated or duplicate characters in a given String and their count? You can solve this coding problem in any programming language of your choice like Java, Python, Ruby, or even JavaScript. I'll explain the logic and solution which is easy to implement in the above programming languages and I'll provide code in Java, which is my favorite programming language. In order to solve this problem, You need to first check if a String contains any duplicate characters or not, and then if it contains any duplicate letters then find out how many times they appear in the given input String.
Is Java a Better Programming Language to Learn Coding?
I often receive questions like which is the first programming language to learn first, Is Java the right programming language to start in 2020, how good Java is as a first programming language, which is the best programming language for beginners, or shall I start with Java or Python. Well, the answer to all these questions is, Java is one of the most popular programming languages, and there are a lot of reasons to learn Java, starting with Job opportunities to leverage community support. In the context of beginning programming or choosing Java as the first language, my most significant reason is that it's simpler to learn.
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