Java for Beginners

Java is one of the most popular programming languages in the world. Let's learn the basics!

Why Learn Java?

- Platform independent (Write Once, Run Anywhere) - Object-oriented - Strong community support - Used in enterprise applications - Android development

Your First Java Program

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

Basic Concepts

Variables

int age = 20;
String name = "Faizan";
boolean isDeveloper = true;

Conditional Statements

if (age > 18) {
    System.out.println("Adult");
} else {
    System.out.println("Minor");
}

Loops

// For loop
for (int i = 0; i < 5; i++) {
    System.out.println(i);
}
// While loop
int count = 0;
while (count < 5) {
    System.out.println(count);
    count++;
}

OOP Basics

Classes and Objects

public class Person {
    String name;
    int age;
    
    public void greet() {
        System.out.println("Hello, I'm " + name);
    }
}
// Creating an object
Person p = new Person();
p.name = "Faizan";
p.greet();

Conclusion

Java is a great language to start your programming journey. Practice daily and build small projects!