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How to check if a Number is Power of Two in Java? [Bitwise AND Example]

Hello guys, if you are thinking about how to check if a given number is a power of two without using an arithmetic operator like division then you have come to the right place. In Java, you can use bitwise operators like bitwise AND check if a given number if the power of two or if the given number is even or odd. In this Java Programming tutorial, you will learn how to check if the number is the Power of two using a bitwise operator. The main purpose of this program is to teach you how to use bit-wise operators like bitwise AND (&)  in Java. A number is said to be the power of two if all its prime factors are 2, but in the binary world, things work a little differently. 

Top 5 Free Online Courses to Learn Eclipse and JUnit for Beginners - Best of Lot

Both Eclipse and JUnit are two of the essential tools for Java Developers. Eclipse is a Java IDE, Integrated Development environment which allows you to code, run, and debug Java program from a single window. At the same time, JUnit is a unit testing library that will enable you to test your Java code automatically. You can write JUnit tests, and then you can run them automatically using Maven or Gradle plugin at build time. You can further automate your build using Jenkins, which means your Unit test will run continuously and automatically, reporting any break at the earlier possible opportunity.

How to reverse a String in place in Java - Example

One of the common Java coding interview questions is to write a program to reverse a String in place in Java, without using additional memory. You cannot use any library classes or methods like StringBuilder to solve this problem. This restriction is placed because StringBuilder and StringBuffer class define a reverse() method which can easily reverse the given String. Since the main objective of this question is to test the programming skill and coding logic of the candidate, there is no point in giving him the option to use the library method which can make this question trivial. Now, how do you solve this problem? If you are familiar with an array data structure then it would be easy for you. Since String is backed by a character array, you can use the same in-place algorithm we have used to reverse an array in place.

Top 5 Free Courses to Learn Ruby on Rails for Beginners in 2021 - Best of Lot

Hello guys, welcome to this post, here you will find some of the best free courses to learn Ruby programming language and Ruby on Rails framework online from Udemy. If you don't know what Ruby is and what is Rails framework, then let me tell you that it's one of the simplest programming languages with little to no syntax. If you are new to programming or never coded before, then also developing a Ruby application will be much more comfortable than choosing any other programming language like Python or Java. When it comes to developing web development, Ruby on Rails also makes your job easy by making several useful assumptions based upon convention, which means you can do more by writing less code.

Matrix Multiplication in Java using Scanner, Class, and Function [Example]

Hello guys, if you are looking for a matrix multiplication example in Java using the scanner for user input, and using class and object-oriented programming then you have come to the right place. In this Java tutorial, I will show you how to multiply matrix in Java using an array, scanner, and object-oriented programming. We will create a class to represent matrix and then define a multiplication method to multiply two matrics in Java. I first learned about matrix in class 12th and I first wrote the program to multiply two matrices on my first semester of engineering, so, when I thought about this program, It brings a lot of memories from the past. 

7 Free Selenium Testing Courses to Learn Online in 2021 - Best of Lot

Testing is an integral part of software development, and we have long been relied on manual testing by testers and QA professional to ship quality software and find bugs, but that's not sustainable anymore. There is an increased focus on automation testing nowadays, and Selenium is leading the way with its web drivers. If you don't know what selenium is, it's a free automation testing tool for web applications. It can work with different web browsers like Chrome, Firefox, Internet Explorer, Opera, and simulate human-like behavior. By using Selenium, you can programmatically interact with all the different elements on a webpage. You can click on them, input text, extract text, and so much more.