A Journey Into the World of Programming with First Core Java Program
Tags: java, programming, core
Published: 2024-02-01 11:21:33

Core Java language's essential programming language. It covers the fundamentals that provide the foundation for Java application development.  Here are a few topics-

**Introduction: **
In a technical world, Core Java is a crucial component of Java programming that you cannot afford to ignore, whether you are a fresher or an experienced developer. You have to practice your technical skills. In this Blog, we'll set off on a journey into Core Java's foundations.
Beginning the process of learning a new programming language may be exciting. As a new programmer, I recently started my career in Java at [Prilient Company](https://prilient.com/backend_development). I'll walk you through the great process of building my first Java application in this blog post. Join me as we explore the fundamentals of Java, the excitement of doing code come to life, and the critical lessons learned along the way.

**Here are some main points:**
Create the Environment: Before getting started with coding, I installed the Java Development Kit (JDK) on the Oracle website and chose my preferred VS Code Environment. The JDK supplies necessary tools, while VsCode provides a user-friendly interface for effectively writing, compiling, running, and managing projects. This stage serves to streamline the development process for Java programs.
Understanding the structure- After setting up my environment, I became familiar with the fundamental components of a Java application. The main method is the point at which the execution of the program begins. Additionally, I gained knowledge of the significance of proper syntax, indentation, and semicolons. For practice on Java syntax, we can create an account on HackerRank and TopCoder.
Implement the "Hello, World!" Program:- My first program, in the programming field, was a basic "Hello, World!" output. It was amazing and rewarding to see my first lines of Java code execute properly and display those familiar words on the screen. I have learned the basics of core Java through some websites like-JavaTpoint, W3 School, and Geeks for Geeks. There are some great tutorials on YouTube channels such as CodewithHarry, Smart Programming, and Learn Coding where we can enhance our skills as freshmen.

Variables and Data Types -I learned the usage of variables and data types to make my program dynamic, moving beyond a static output. I learned how to store the values in Data types and modify data within a program, from numbers to strings, characters, bytes, ints, shorts, and doubles. 

**Types of Variable:-**
-Local Variable
-Static Variable
-Instance Variable
User Input from Scanner Class: To improve the interactivity of my software, I included user input using the Scanner class. It opened up new possibilities by letting users engage with the software and affect its output. For input from users, you have to add the package “import Java.util.Scanner”. So that we can get the Scanner class in our program. If we use the scanner class, we must create an object of the Scanner class and use the methods as per Variable data types.
 Conditional Statements: To improve my program's decision-making skills, I learned about conditional statements such as if-else, nested if-else and switch cases. These components allowed my software to modify its behavior in response to changing situations.
Loops for Repetition: Next, I explored the power of loops like for, while, and do-while, which allowed me to execute code blocks repeatedly. I realized how loops save time and effort while developing repetitive code. Loops make our programming easier. 
Object-Oriented Programming (OOP) in Java: An in-depth exploration of OOP principles in Java, covering classes, objects, inheritance, polymorphism, and encapsulation.  With Oops, you can use Java's powerful object-oriented programming paradigm to design, model, and create complex systems. You may efficiently represent real-world items and their interactions in code by comprehending and putting these principles into practice. 
Java GUI Programming: A Tutorial on How to Create Graphical User Interfaces (GUIs) with Java Swing, Complete with Examples and Layouts For making a Basic GUI, we need to provide a step-by-step tutorial for constructing a basic GUI application using Swing components like buttons, labels, and text fields.
Exception Handling in Java: A Guide to Exception Handling in Java, including try-catch blocks, custom exceptions, and error handling best practices
**Java Operators:**  Operators are defined as symbols that execute operations on variables and values, laying the groundwork for their various responsibilities in Java programming. Operator Varieties discovers the several types of operators in Java, such as arithmetic, assignment, comparison, logic, and more, each serving a specific function.
Arrays: For creating and using arrays, we need to go through the process of declaring the array first, then Adding values to it, and understanding the array's length.
For declaration and initialize array we need to create the arrays like this-
**
Here are two types of arrays-**
- One dimensional array (1D)
-Multi Dimensional Array (2D)
Tips and Best Practices- In my opinion, you have to practice the basic skills like HTML, CSS, and JS. This will be more effective for learning about any programming language. For Readability and maintainability of code, you have to write clean, readable, and maintainable code and adhere to coding standards and best practices. For being a good programmer, We can do some certification for any programming skills through Udemy, Coursera, or Masai School.

**Conclusion-**
Writing my first Core Java application was a wonderful and eye-opening experience. Java has had a lasting effect on me, from getting started to experiencing the wonder of my code coming to life. This trip has provided me with a good foundation in the fundamentals of Core Java programming. As I continue to study Java's broad environment, I'm enthusiastic to take on new tasks and uncover the almost unlimited possibilities this language provides. Whether it's developing apps, digging into Object-Oriented Programming, or researching sophisticated Java frameworks, I'm now armed with the necessary skills to start on more Core Java programming experiences.
My advice to others is to embrace the learning process, keep interested, and don't be scared to try new things.