Lädt...


🔧 Programming basics in Java | Part 1 : Introduction and Project Setup


Nachrichtenbereich: 🔧 Programmierung
🔗 Quelle: dev.to

If you prefer to learn by watching : https://youtu.be/lIr1tN5gTN0

Introduction

Hello, everyone, and welcome to our beginner-friendly journey into the realm of Java programming. In this introductory article, we’ll explore the essentials to get you started with Java, a versatile programming language favored by developers worldwide. We'll cover key concepts, from setting up your development environment to understanding variables, data types, and basic operators. By the end of this guide, you’ll have the knowledge to build a simple Java application.

Why Java?

Java is the preferred choice for many developers due to its widespread use and flexibility. Since its creation in 1995, Java has become one of the most popular programming languages, powering over three billion devices globally. Whether you're developing desktop software, mobile apps, web applications, or enterprise systems, Java's "write once, run everywhere" philosophy ensures compatibility across platforms.

Setting Up Your Development Environment

To start coding in Java, you'll need to set up your development environment. For this, we recommend using IntelliJ IDEA. You can download the free community edition from JetBrains, which is suitable for creating most applications. Once downloaded, follow the installation instructions and set your project up as shown in the script. For your first project, let's call it "Java Basics," and use Gradle as your build system.

Understanding Java Basics

When you open IntelliJ, you'll see a typical Java class file structure. A class in Java is the blueprint for objects and encapsulates your program's logic. Every Java program must have a main method, which serves as the entry point. We start our journey by running a simple "Hello, World" program, printed using System.out.println.

Variables and Data Types

Java offers a variety of data types to store and manipulate data:

  • String: For storing text.
  • int: For storing whole numbers.
  • float & double: For decimal numbers.
  • char: For single characters.
  • boolean: For true/false values.

Variables are containers for data. For example, to store your name and age, you would declare them as:

String name = "Alex";
int age = 37;

Operators in Java

Java supports various operators for arithmetic (addition, subtraction, multiplication, division, and modulus), assignment, comparison, and logical operations. Understanding these will help you perform calculations and manipulate data effectively.

Control Flow with Conditions

Control statements like if, else if, and else help direct your program's flow based on conditions. The switch statement can be used for multiple potential outcomes, such as checking the day of the week or evaluating temperature conditions.

Putting It All Together

In the script, we provided an example of a "Weather Advisor" application that recommends attire based on the current weather conditions using various control statements we've discussed. This simple program consolidates your understanding of variables, data types, and control flow.

Conclusion

By now, you should have a foundational understanding of Java programming. Remember, practice is key to mastering programming concepts. Experiment with different variables, operators, and control flows. Don't hesitate to make mistakes—each one is an opportunity to learn.

Stay tuned for more tutorials, and don't forget to like and subscribe to our channel for updates on new video releases. If you have any questions, feel free to leave a comment. Happy coding!

...

🔧 Programming basics in Java | Part 1 : Introduction and Project Setup


📈 53.23 Punkte
🔧 Programmierung

🔧 Java Spring Boot for Beginners: Part 1: Introduction and project setup


📈 35.03 Punkte
🔧 Programmierung

🔧 Programming basics in Java | Part 2 : Loops, Arrays, Methods, OOP and More!


📈 30.98 Punkte
🔧 Programmierung

🔧 The World of HarmonyOS Programming: Basics of Concurrent Programming and Task Concurrency in HarmonyOS


📈 27.54 Punkte
🔧 Programmierung

🔧 An Introduction to the Go Programming Language: Setup, Syntax, and Basic Concepts


📈 26.42 Punkte
🔧 Programmierung

🔧 What is Java Used For in 2023? The Java Programming Language and Java Platform Strengths


📈 26.32 Punkte
🔧 Programmierung

🔧 Your Complete Guide to MongoDB: Part One ( Setup and Basics)


📈 25.91 Punkte
🔧 Programmierung

🔧 The Future of Programming with AI - Part 1: The Basics and Early Adopters


📈 25.33 Punkte
🔧 Programmierung

🔧 Java Programming changes from Java SE 1.0 to Java SE 23


📈 25.01 Punkte
🔧 Programmierung

🔧 ### Introduction to Programming: From Error Handling to Object-Oriented Programming (OOP)


📈 24.53 Punkte
🔧 Programmierung

🐧 Glibc Heap Exploitation Basics : Introduction to ptmalloc2 internals (Part 1)


📈 24.44 Punkte
🐧 Linux Tipps

🕵️ Glibc Heap Exploitation Basics : Introduction to ptmalloc2 internals (Part 1)


📈 24.44 Punkte
🕵️ Reverse Engineering

🕵️ Glibc Heap Exploitation Basics : Introduction to ptmalloc2 internals (Part 1)


📈 24.44 Punkte
🕵️ Reverse Engineering

🔧 Introduction to Git: The Basics You Need to Know – Part 1


📈 24.44 Punkte
🔧 Programmierung

🔧 Python Basics 7: String part 1- Introduction


📈 24.44 Punkte
🔧 Programmierung

🔧 Mastering the basics: A Deep into Low-Level Programming Essentials (Part 1)


📈 24.02 Punkte
🔧 Programmierung

🔧 Mastering the basics: A dive into low-level programming essentials(Part 2)


📈 24.02 Punkte
🔧 Programmierung

📰 Introduction to Linear Programming — Part II


📈 22.31 Punkte
🔧 AI Nachrichten

🔧 5-Part Article Series: The Future of Programming with AI - Introduction to AI


📈 22.31 Punkte
🔧 Programmierung

🔧 AI for Web Devs: Project Introduction & Setup


📈 22.25 Punkte
🔧 Programmierung

🔧 Java vs. Python: An Introduction to Two Powerful Programming Languages


📈 22.15 Punkte
🔧 Programmierung

🔧 Java Programming: Introduction


📈 22.15 Punkte
🔧 Programmierung

🐧 Introduction to the ELF Format (Part VI) : The Symbol Table and Relocations (Part 1)


📈 21.4 Punkte
🐧 Linux Tipps

🐧 Introduction to The ELF Format (Part VI): The Symbol Table and Relocations (Part 2)


📈 21.4 Punkte
🐧 Linux Tipps

🐧 Why is it so tedious and Painful to setup a Windows server, and so quick and easy to setup a Linux server?


📈 21.17 Punkte
🐧 Linux Tipps

🔧 React Basic: Using setup with Vite and understanding the very basics from what's inside there.


📈 20.1 Punkte
🔧 Programmierung

🐧 Introduction to the ELF Format (Part VI) : More Relocation tricks - r_addend execution (Part 3)


📈 20.09 Punkte
🐧 Linux Tipps

🔧 Introduction to CSS: The Basics and How to Use It


📈 19.93 Punkte
🔧 Programmierung

🔧 Introduction to JavaScript classes: basics, syntax and example usage


📈 19.93 Punkte
🔧 Programmierung

📰 Introduction to Support Vector Machines — Motivation and Basics


📈 19.93 Punkte
🔧 AI Nachrichten

🔧 Introduction to Linux GUIs: Unpacking the Basics of Desktop Environments, Window Managers, and More


📈 19.93 Punkte
🔧 Programmierung

🔧 Introduction to React Basics and Next.js


📈 19.93 Punkte
🔧 Programmierung

🔧 Introduction to AWS: Basics and main services


📈 19.93 Punkte
🔧 Programmierung

matomo