Classes, objects, and methods are at the heart of C# programming.
🧱 Making a Class
A class is a template for creating objects.
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class Animal
{
public string Name;
public void Speak()
{
Console.WriteLine($"{Name} makes a sound.");
}
}
🐶 Creating an Object
An object is an instance of a class.
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Animal dog = new Animal();
dog.Name = "Rex";
dog.Speak(); // Rex makes a sound.
🔧 Adding Methods
Methods are functions inside classes. They can use and modify the object’s data.
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class MathHelper
{
public int Square(int n)
{
return n * n;
}
}
MathHelper helper = new MathHelper();
Console.WriteLine(helper.Square(4)); // 16
📝 Try It!
Write a class Book with a property Title and a method PrintTitle() that prints the title.
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class Book
{
public string Title;
public void PrintTitle()
{
Console.WriteLine(Title);
}
}
Next: Learn about encapsulation, inheritance, and polymorphism!
