Udemy – Java Tutorial for Beginners By Studyopedia Trainings

Java is a widely used programming language launched in 1994. It easily runs on multiple platforms such as Windows, Linux, and macOS. Java comes with a compiler and interpreter. Java came as an enhancement to Java and removed complicated features.

Java Features

The following are the features of Java:

• Architecture Neutral: Just compile your Java program and take it to another operating system. The same program works in another operating system as well without the need to recompile it. This is why it is called “Write Once, Run Anywhere, Anytime, Forever”.
• Security: Java programs are secure since they get compiled first into bytecode, which leads to their verification.
• Auto Garbage Collection: Java comes with an automatic garbage collector, which makes the memory more efficient by reclaiming memory for reuse. In C++, garbage collection isn’t automatic, so we use the delete() function. But in Java, there is no need to use any function, since the garbage collector works automatically, being part of the JVM.
• Multi-threading: Java comes with the multi-threading concept, which makes the program quite effective, unlike single-threading. You can easily execute multiple threads simultaneously with Java.
• Pure Object-Oriented Language: Java deals with an object-oriented programming language, so it has all the concepts of object-oriented programming, such as Classes, Objects, Abstraction, Polymorphism, etc.