“Strongly typed means that decisions about data structures are made when the code is being written, not when it's being run. Object-oriented means that we organize the code around entities that our program is concerned with, like Person, Invoice, or Location.” “Java is an object-oriented, strongly typed language that runs on a virtual machine. “Java is still commonly taught in introductory high school and college computer science curriculum as an introduction to object-oriented programming as well as programming more broadly.” Our first specialist Andrew Lindberg, Senior Software Development Mentor at Exelaration was happy to share his insights below on the background of Java and how it is being taught to students and used across many enterprises. What Is The Best Way To Go About Learning Java As A First Language?īest Java Tutorials & Online Resources For Learning Java ContentsĪn Introduction To Java As A Programming Language The tips and tutorials recommended below are from seasoned engineers and software development professionals so you can count on this guide to be used as both an initial stepping off point for understanding the basics or as a resource to help you brush up on your current knowledge. We’ll take you through some of the best tutorials and tips to get you started on your journey to becoming a Java developer. The hello world program is probably the most basic executable Java program that you can possibly write – and understanding this program is crucial.If you’ve ever wondered how to learn Java with no programming experience then look no further than our guide. Congratulations, you've successfully run your first Java program. If everything goes fine, you'll see the words "Hello world!" printed on the right side. You can run the code by hitting the Run button. The template comes with some code by default. On the left side is the list of files in this project, in the middle is the code editor, and on the right side is the terminal. In the Create a Repl modal, choose Java as Template, set a descriptive Title such as HelloWorld and hit the Create Repl button.Ī code editor will show up with an integrated terminal as follows: From there, use the Create button under My Repls to create a new repl. Once logged in, you'll land on your home. You can use your existing Google/GitHub/Facebook account to login. For this example, you'll use as your platform.įirst, head over to and create a new account if you don't already have one. Ideally the first step should've been setting up Java on your computer, but I don't want to bore you with downloading and installing a bunch of software right at the beginning. The only re-requisite for this course is familiarity with any other programming language such as Python, JavaScript, and so on.Īlthough I'll explain crucial programming concepts in the context of Java, I'll not explain things like what a variable is in the context of programming in general. What Are the Getter and Setter Methods in Java?.How To Perform an Action on All Elements of a Hash Map.How To Check if a Hash Map Contains an Item or if It’s Empty.How To Put or Replace Multiple Elements in a Hash Map.How To Perform an Action on All Elements of an Array List.How To Keep Common Elements From Two Array Lists.How To Check if an Element Is Present or the Array List Is Empty.How to Remove Elements Based on a Condition.How to Perform Binary Search on an Array.What Are Default Values of Variables in Java?.How to Use Conditional Statements in Java.What Are the Different Ways of Inputting and Outputting Data?.How to Check If a String Contains a Substring or Not.How to Replace Characters or Substring in a String.How to Convert a String to Upper or Lowercase. How to Get the Length of a String or Check if It's Empty or Not. What are the Primitive Data Types in Java?.What Are the Rules for Declaring Variables?.How To Create a New Project on IntelliJ IDEA.How To Install a Java IDE on Your Computer?.We'll discuss this topic in much more detail later on.įor now, I can tell you that although Java has its fair share of flaws, it also a has a lot to offer. Java is also cross-platform which means code you write and compile on one platform can run on any other platform that has Java installed on it. There are also other JVM (we'll discuss what that means very soon) languages such as Kotlin, Groovy, Scala, and Clojure that you can use for different purposes. You can use Java to build servers, create desktop applications, games, mobile applications and more. After its first appearance back in 1995, it's still widely-used – and chances are it's not going anywhere anytime soon. Regardless of how people feel about Java, I can tell you from experience is that it is an excellent programming language. And despite its massive success in many areas, this cross-platform, object-oriented programming language is often maligned.
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