![what is a java jar file what is a java jar file](https://i.stack.imgur.com/IsQZv.jpg)
You will be able to organize and access classes, as well as use selected standard classes from the Java runtime environment. jar file is the last step that can make the application truly portable - you can send it to someone and they can just run. Finally, we'll cover namespaces and Java Libraries to explain how Java packages classes, so that everyone can develop code without name collisions. We'll introduce the idea of instances, or objects created from classes, so that you can start to build object-oriented solutions. Next, we'll introduce basic Java concepts regarding classes, enabling you to start writing simple Java classes with attributes and methods. We'll begin with a brief refresher on necessary concepts from Object-Oriented Programming. Typically a JAR file will contain the class files and.
WHAT IS A JAVA JAR FILE ARCHIVE
After completing this course, you'll be able to create simple Java classes that exhibit the principle of Encapsulation, to import other classes for use, to work with Strings, print output and use advanced math functions. The JavaTM Archive (JAR) file format enables you to bundle multiple files into a single archive file. To include any of these (other than rt.jar) in to your project you need to set the class path for this particular JAR file. All the predefined libraries are available in this format. Introduction to OO Programming with Java is course 2 of the Core Java Specialization. A java archive file is a file format/ archiving tool which contains all the components of an executable Java application.