Java Features

Java is a high-level, object-oriented programming language. This language is very easy to learn and widely used. It is known for its platform independence, reliability, and security.

Simple Syntax

Java syntax is very straightforward and very easy to learn. Java removes complex features like pointers and multiple inheritance, which makes it a good choice for beginners.

Object Oriented

In Java, everything is an Object. Java can be easily extended since it is based on the Object model. As a language that has the Object-Oriented feature, Java supports the following fundamental concepts of OOPs

• Polymorphism
• Inheritance
• Encapsulation
• Abstraction
• Classes
• Objects
• Instance
• Method
• Message Passing

Platform Independent

Platform Independent means a program or software can run on different operating systems or devices without needing major changes.

• Java is platform independent.

• You write code once, and it can run on:

• Windows

• Linux

• macOS

Interpreted

Java byte code is translated on the fly to native machine instructions and is not stored anywhere. The development process is more rapid and analytical since the linking is an incremental and light-weight process.

Java code is not directly executed by the computer. It is first compiled into bytecode. This byte code is then understand by the JVM. This enables Java to run on any platform without rewriting code.

Scalable

Scalable means a system or software can handle increasing workload or users without losing performance.

Imagine a small shop that can grow into a big supermarket without changing its basic structure. That is scalability.

• Imagine a small shop that can grow into a big supermarket

• without changing its basic structure. That is scalability.

Portable

Portable means software or code can be moved and used on different systems or environments with little or no modification.

Being architecture-neutral and having no implementation dependent aspects of the specification makes Java portable. Compiler in Java is written in ANSI C with a clean portability boundary, which is a POSIX subset.

Multithreaded

Multithreaded means a program can run multiple tasks (threads) at the same time inside one application.

Multithreaded means a program can run multiple tasks (threads) at the same time inside one application.

• One program performs many operations simultaneously.
• Improves speed and performance.
• Uses CPU more efficiently.

High Performance

High Performance means software or a system runs fast, efficiently, and with good speed while using resources wisely.

With the use of Just-In-Time compilers, Java enables high performance. JVM uses JIT compiler to improves the execution time of the program. Below are some general optimizations that are done by the JIT compilers

• Fast execution
• Low memory usage
• Handles heavy tasks quickly
• Less delay (low latency)