DEV Community: Kandasami T

Features of JAVA

Kandasami T — Wed, 28 May 2025 16:26:05 +0000

Java is a high-level, object-oriented programming language.

It is known for its platform independence, reliability, and security.

Java Programming language follows the "Write Once, Run Anywhere" principle.

Distributed,Java supports computing through RMI - Remote method Invocation.

Java Day1

Kandasami T — Wed, 12 Feb 2025 14:22:27 +0000

class Second
{
public static void main(String[] args)
{
Second sec = new Second();
sec.add(10,20);
}
public void add(int no1, int no2)
{
//definition or body
}

Result:-

Java method

Kandasami T — Thu, 06 Feb 2025 16:47:48 +0000

Java method is a set of statements that perform a certain action and can return results to the caller.

Types of methods.
Predefined method - These methods are known as standard library methods or build in methods, are already defined in the JAVA. These methods directly can be directly used by calling them in program.
User defined methods - These methods are created by the users to perform specific task, These methods can be customized according to the requirements of the program.

Java Object

Kandasami T — Thu, 06 Feb 2025 16:36:58 +0000

Object is a fundamental unit of Object-Oriented Programming (OOP) and represents real-world entities.
An object is an instance of class.
It can be created with "new" keyword followed by the classname, we use that class reference and assign data to my class object and use it where we needed.

Java Class definition

Kandasami T — Wed, 05 Feb 2025 14:09:44 +0000

Java provides a reserved keyword class to define a class.
The keyword must be followed by the class name.
Inside the class we declare variables and methods.
A class can be a logical entity to create the object that shares the common properties and methods.

Java

Kandasami T — Mon, 03 Feb 2025 13:51:04 +0000

What is JAVA?

Java is a class based, Object oriented programming language.
Java is developed in Sun Microsystems in 1995.
Java allows user to write code once and run it anywhere (WORA), WORA meaning is compiled java program can run on all platforms that support java without need of recompilation.