What is JAVA?

Nitin Kushwaha 907 09 Jul 2019

Java is an object-oriented programming language.

Nitin Kushwaha 09 Jul 2019

Java

Java is a programming language.

It is a platform independent, highly secure, robust, flexible, portable, object-oriented programming language.
Program written in Java offer Portable in a network: - In Java, Source code compiled into byte code that can be run into any network.
Java is objected oriented: - An object is made up of attributes and code as a method.
Java is robust: - Java objects do not contain any reference of data.
Java is secure: - Java has not used a pointer (address of next field).
Developers can easily understand.

Edition of Java:-

History of Java:-

It was created in 1995 by Green’s Teams. Leader of the green team is James Gossling.
James Gossling was also called a father of java.
How to install java on Windows:

Steps are:-

Go to "System Properties" (Can be found on Control Panel > System and Security > System > Advanced System Settings)
Click on the "Environment variables" button under the "Advanced" tab
Then, select the "Path" variable in System variables and click on the "Edit" button
Click on the "New" button and add the path where Java is installed, followed by \bin. By default, Java is installed in C:\Program Files\Java\jdk-11.0.1 (If nothing else was specified when you installed it). In that case, You will have to add a new path with C:\Program Files\Java\jdk-11.0.1\bin
Then, click "OK", and save the settings
At last, open Command Prompt (cmd.exe) and type java -version to see if Java is running on your machine.

Java Syntax:-

Class name.java

Where .java is the extension.

E.g.

Public class student

{

Public static void main (String args[])

{

System.out.println (“Hello India”);

}

}

Output:-

Hello India

Where Student is the class name.

Java Data Types:-

There are two parts of the data type are;

The primitive Data type (non-user defined):- int, char, float, double, short, etc.
Non-Primitive Data Type (user defined):- String, Arrays, Classes.

Markdown for AI

A clean, structured version of this page for AI assistants and LLMs.

forum