Top 5 Courses to Crack Cisco CCNA 200-301 Certification Exam in 2024 - Best of Lot

Hello guys, if you are preparing for Cisco CCNA certification, particularly CCNA 200-301, and looking for the best resources like online courses, tutorials, practice tests, books, etc then you have come to the right place. Earlier, I have shared the best CompTIA certification courses and in this article, I am going to share the best online courses to prepare for Cisco CCNA 200-301 certification exam. These courses are created by experts and trusted by thousands of developers and you can join them to know and learn more about Cisco CCNA certification as well as pass their Cisco CCNA official exam to get your Certification.

Top 5 Websites to Learn Data Science Online in 2024 - Best of Lot

Hello guys, if you want to learn Data Science in 2024 and looking for the best resources like books, tutorials, online courses, and websites then you have come to the right place. Earlier, I have shared the best Data Science courses and books and in this article, I Am going to share the best websites to learn Data Science online in 2024. Data science is the method of gathering data from many sources and channels such as databases analyzing and transforming them into visualization and graphs that facilitate the readability and understanding of your data to ensure better decision-making inside an organization and add value to their business.

Top 5 Online Courses to Learn Facebook Marketing in 2024 - Best of Lot

Hello guys, if you want to learn Facebook Marketing and looking for the best online courses other resources then you have come to the right place. I have been sharing resources on digital marketing for quite some time and earlier I have shared 5 actionable Twitter courses as well as the best Instagram Marketing course, and today, I am going to share the best Facebook Marketing courses to join in 2024. These are truly the best courses to learn essential skills like Facebook ads and in general how to take advantage of Facebook's expansive reach to promote your product.  I have used Facebook and Twitter to promote my books and online courses but I am still learning with these courses to generate consistent sales and thought to share with you. 

Top 5 Online Courses to Learn Business Strategy in 2024 - Best of Lot

Hello guys, if you want to learn Business Strategy and looking for the best online courses then you have come to the right place. Earlier, I have shared many digital marketing courses like these actionable Twitter courses, Instagram Marketing course, and these best Facebook Marketing courses but we never discussed Business Strategy. But, don't worry, in this article, I am going to share the best online courses to learn Business Strategy in 2024. These are very actionable courses with actionable tips and tricks and filled with real-life experience. You can join a couple of these courses to learn the Business strategy and grow your business in 2024, but before that let's try to find out what is business strategy?

How to delete a key value pair from a HashMap during Iteration in Java - Example tutorial

Suppose you have a Map or Dictionaries like HashMap or Hashtable, which contains key-value pairs like books and their prices, and you want to delete all books whose prices are greater than 40 USD, how do you that in Java? This is one of the most common scenarios while developing Java applications and many Java programmers, will say that they will iterate over Map and check each entry and then use the remove(Object key) or remove(Object key, Object value) methods from java.util.Map to delete any mapping where the value is greater than 40 USD. Though the approach is right, the answer is wrong.

Top 30 Java Phone Interview Questions Answers for Freshers, 1 to 2 Years Experienced

Hello guys and ladies, in this article, I am sharing 30 core Java technical questions, from screening and phone rounds of interviews. In telephonic interviews, questions are short, fact-based and Interviewer expects a to-the-point reply and some keywords in answers. Accordingly, I have given very short answers to all these questions, only the main points; just to make this a revision post and not the main source for preparation. For thorough preparation, my master list of 140+ Java questions is a better one to start with. I am also expecting every Java programmer to know answers to all these Java technical questions if he has more than 4 to 5 years of experience. It's only freshers and junior developers who need to do a bit of research to understand topics well.

Difference between SOAP and RESTful Web Service in Java

Though both SOAP and RESTful web services allow a client to query the server for some information, the way they are implemented and used is quite different. The main difference between SOAP and REST is that the former provides a standard of communication between client, server, and other parties and has restricted a set of rules and format, while REST leverages the ubiquity of HTTP protocol, in both client and servers, to allow them to communicate with each other regardless of their implementation. In short, getting data from a RESTful web service requires less headache than getting data from a SOAP web service.

3 Ways to Read File line by line in Java 8? Examples

Java 8 has added a new method called lines() in the Files class which can be used to read a file line by line in Java. The beauty of this method is that it reads all lines from a file as Stream of String, which is populated lazily as the stream is consumed. So, if you have a huge file and you only read the first 100 lines then the rest of the lines will not be loaded into memory, which results in better performance. This is slightly different from the Files.readAllLines() method (which reads all lines into a List) because this method reads the file lazily, only when a terminal operation is called on Stream like forEach(), count(), etc. By using the count() method you can actually count a number of lines in files or the number of empty lines by filtering empty lines.

2 Examples to read Zip Files in Java, ZipFile vs ZipInputStream - Tutorial

ZIP format is one of the most popular compression mechanisms in the computer world. A Zip file may contain multiple files or folders in compressed format.  Java API provides extensive support to read Zip files, all classes related to zip file processing are located in the java.util.zip package. One of the most common tasks related to zip archive is to read a Zip file and display what entries it contains, and then extract them in a folder. In this tutorial, we will learn how to do this task in Java. There are two ways you can iterate over all items in a given zip archive, you can use either java.util.zip.ZipFile or java.util.zip.ZipInputStream. Since a Zip file contains several items, each of them has a header field containing the size of items in a number of bytes. This means you can iterate all entries without actually decompressing the zip file.

How to access Private Field and Method Using Reflection in Java? Example Tutorial

Reflection in Java is a very powerful feature and allows you to access private methods and fields which is not possible by any other means in Java and because of this feature of reflection many code coverage tools, static analysis tools,s and Java IDE like Eclipse and Netbeans has been so helpful. In the last article, we have seen details about private keywords in Java and learned why we should always make fields and methods private in Java. There we have mentioned that private fields and methods are only accessible in the class they are declared but with reflection, you can call the private method and access private fields outside the class. In this article, we will see a simple example of accessing a private field using reflection and invoking a private method using reflection in Java.

Top 6 Online Courses To Learn Computer Security for Beginners in 2024 - Best of Lot

Hello guys, If you want to learn Computer Security and looking for the best courses to learn Computer Security then you have come to the right place. Earlier, I have shared the best Cyber Security Courses and best Web Security courses and in this article, I am going to share free online courses to learn Computer Security for beginners, both tech and non-tech people. Computer security is a complex field of learning but must for everybody learn to protect themselves and their companies from letting bad people access your sensitive information they shouldn’t access. 

Top 5 Online Courses to Learn Instagram Marketing in 2024 - Best of Lot

Hello guys, if you are wondering how to market your course or your product on Instagram, one of the popular social networks, particularly for creators then you have come to the right place. Earlier, I have shared the best Twitter marketing course and a lot of you asked to share similar courses for Facebook and Instagram marketing and here we are with the best Instagram marketing courses in 2024. There are more than 1.3 billion people using Instagram in 2021. So we can securely say that Instagram has a big influence over the world. Since there are so many people using the platform, why not take advantage of it and grow your business with it?

Top 5 Online Courses to Learn Google Sheet for Beginners in 2024 - Best of Lot

Hello friends! we meet again today and are surely gonna learn something fantastic cause as they say 'knowledge never fades!'. So, today we are gonna learn something that is very familiar and related to me as I type this. Today we are gonna review some of the best Google Sheet online courses that are present in the market.

So, what's the wait? Let's start!

All of you must have used Excel or any other spreadsheet program by now. Google Sheets is a spreadsheet tool that is included with Google's free, web-based Google Docs Editors suite. Google Docs, Google Slides, Google Drawings, Google Forms, Google Sites, and Google Keep are all part of the service. Let's see some of the best available courses to learn it.

Top 5 Courses to Learn NPM and WebPack in 2026 - Best of Lot

Hello guys, if you want to learn about NPM or Node Package Manager, a tool that is used to manage dependencies for web applications and Webpack in 2024 and looking for the best resources like online courses and tutorials then you have come to the right place. Earlier, I have shared the best web development courses and best Node.js courses and in this article, I am going to share the best NPM and WebPack courses for beginners. For those who are completely new to this, the first thing you need to understand is that NPM and WebPack are actually two different tools that perform are used to do two different things. We will start off with NPM

How Garbage Collection works in Java? Explained

I have read many articles on Garbage Collection in Java, some of them are too complex to understand and some of them don’t contain enough information required to understand garbage collection in Java. Then I decided to write my own experience as an article. You can call it a tutorial about garbage collection in simple words, which would be easy to understand and have sufficient information to understand how garbage collection works in Java. Garbage collection works by employing several GC algorithms like Mark and Sweep, G1, etc. There are different kinds of garbage collectors available in Java to collect different areas of heap memory like you have serial, parallel, and concurrent garbage collectors in Java.