Welcome to the Java Tutorial! This guide will help you understand the basics of Java programming language and its applications.

Basic Concepts

  • Variables: Variables are used to store data values. In Java, variables must be declared with a specific data type.
  • Data Types: Java has several data types, including int, float, double, char, and boolean.
  • Operators: Operators are symbols that perform operations on one or more operands. Common operators include arithmetic, relational, and logical operators.

Getting Started

To start with Java, you need to have the Java Development Kit (JDK) installed on your system. You can download it from Oracle's website.

Once you have JDK installed, you can write your first Java program. Here's a simple example:

public class HelloWorld {
    public static void main(String[] args) {
        System.out.println("Hello, World!");
    }
}

To compile and run this program, follow these steps:

  1. Save the code in a file named HelloWorld.java.
  2. Open a terminal or command prompt and navigate to the directory containing the file.
  3. Compile the program using the javac command: javac HelloWorld.java.
  4. Run the compiled program using the java command: java HelloWorld.

Advanced Topics

  • Object-Oriented Programming (OOP): Java is an object-oriented programming language. Learn about classes, objects, inheritance, and polymorphism.
  • Collections: Java provides a rich set of data structures for storing and manipulating collections of objects.
  • Concurrency: Java has built-in support for concurrency, allowing you to write multi-threaded applications.

For more information on these topics, visit our Java Advanced Topics page.

Resources

Java Coffee Cup