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Java

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Java is one of the most popular and widely used programming languages.

  • Java has been one of the most popular programming languages for many years.
  • Java is Object Oriented. However, it is not considered as pure object-oriented as it provides support for primitive data types (like int, char, etc)
  • The Java codes are first compiled into bytecode (machine-independent code). Then the byte code runs on Java Virtual Machine (JVM) regardless of the underlying architecture.
  • Java syntax is similar to C/C++. But Java does not provide low-level programming functionalities like pointers. Also, Java codes are always written in the form of classes and objects.
  • Java is used in all kinds of applications like Mobile Applications (Android is Java-based), desktop applications, web applications, client-server applications, enterprise applications, and many more.
  • When compared with C++, Java codes are generally more maintainable because Java does not allow many things which may lead to bad/inefficient programming if used incorrectly. For example, non-primitives are always referenced in Java. So we cannot pass large objects (like we can do in C++) to functions, we always pass references in Java. One more example, since there are no pointers, bad memory access is also not possible.
  • When compared with Python, Java kind of fits between C++ and Python. The programs are written in Java typically run faster than corresponding Python programs and slower than C++. Like C++, Java does static type checking, but Python does not.
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  • Java Basic Syntax
  • First Java Program (Hello World)
  • Datatypes in Java
  • Difference between Primitive and Non-Primitive Datatypes
  • Java Identifiers
  • Operators in Java
  • Java Variables
  • Scope of Variables
  • Wrapper Classes in Java

Here are some important Java features:

  • It is one of the easy-to-use programming languages to learn.
  • Write code once and run it on almost any computing platform.
  • Java is platform-independent. Some programs developed in one machine can be executed in another machine.
  • It is designed for building object-oriented applications.
  • It is a multithreaded language with automatic memory management.
  • It is created for the distributed environment of the Internet.
  • Facilitates distributed computing as its network-centric.
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