Why you choose java?

Java is a high-level, object-oriented programming language developed by Sun Microsystems in 1995 (now owned by Oracle). It’s designed to be platform-independent, meaning Java code can run on any device that supports the Java Virtual Machine (JVM), following the principle “write once, run anywhere” (WORA).

Example of Java Code

import java.util.Scanner;  // Importing Scanner class to take input

// Class definition
public class CircleArea {
    
    // Method to calculate the area of a circle
    public static double calculateArea(double radius) {
        return Math.PI * radius * radius;  // Formula: π * r²
    }

    public static void main(String[] args) {
        // Create a Scanner object for user input
        Scanner scanner = new Scanner(System.in);
        
        // Prompt user for input
        System.out.print("Enter the radius of the circle: ");
        double radius = scanner.nextDouble();  // Take radius as input

        // Call the method to calculate the area
        double area = calculateArea(radius);

        // Print the result
        System.out.println("The area of the circle with radius " + radius + " is: " + area);
        
        // Close the scanner
        scanner.close();
    }
}

Output:

Enter the radius of the circle: 5
The area of the circle with radius 5.0 is: 78.53981633974483

Key Features of Java

Java supports the principles of OOP (Object-Oriented Programming), such as inheritance, polymorphism, encapsulation, and abstraction.
Java programs are compiled into bytecode, which can run on any system that has the JVM installed.
Java has a simple syntax, making it easier for beginners to pick up compared to languages like C++.
Java includes built-in security features, such as bytecode verification and a secure execution environment.
Java has strong memory management features (automatic garbage collection), which helps prevent memory leaks and crashes.
Java supports multithreaded programming, allowing tasks to run concurrently.
While Java is an interpreted language, the JVM optimizes code execution using Just-In-Time (JIT) compilation.

Advantages of Java

The WORA principle ensures Java programs can be run on different operating systems without modification.
Java has one of the largest developer communities, which ensures extensive resources, tutorials, and third-party libraries are available.
Java offers a wide range of APIs for networking, input/output, database connections, and more.
Java is highly scalable, making it suitable for both small applications and large enterprise-level systems.
Java’s reliability and robustness have made it the language of choice for enterprise applications.

Uses of Java

Java is used in back-end web development (e.g., Spring Framework) for building scalable web applications.
Java is the core language for Android app development using Android Studio.
Java is commonly used to build large-scale business applications for organizations.
Java’s high performance and security make it ideal for scientific and research-based applications.
Though not as popular as some other languages in gaming, Java has been used for developing some popular mobile and indie games.
Java is often used to build cloud-based applications due to its portability and scalability features.