Java was first released in 1995, and it quickly gained popularity among developers. One of the main reasons for this was Java's platform independence. Because Java programs are compiled into bytecode, they can run on any platform that has a Java Virtual Machine (JVM). This means that a Java program can run on Windows, Mac, Linux, or any other platform that supports Java.

Another reason for Java's popularity was the fact that it was an object-oriented language. Object-oriented programming (OOP) is a programming paradigm that emphasizes the use of objects, which can contain data and code. OOP is widely used in software development because it makes it easier to write complex programs.
Java Classes in Pune