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:-
J2SE- Java Simple Edition.
J2EE-Enterprises Edition.
J2ME- Java Micro Edition.
J Fax- rich on the internet.
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.
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What is JAVA?
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Nitin Kushwaha
09-Jul-2019Java
Java is a programming language.
Edition of Java:-
History of Java:-
How to install java on Windows:
Steps are:-
Java Syntax:-
Class name.java
Where .java is the extension.
E.g.
Output:-
Hello India
Where Student is the class name.
Java Data Types:-
There are two parts of the data type are;