Methods and Classes

A class bundles data (fields) and behavior (methods) together, it's the blueprint for creating objects.

class Student
{
    public string Name;
    public int Xp;

    public Student(string name, int xp = 0)
    {
        Name = name;
        Xp = xp;
    }

    public int GainXp(int amount)
    {
        Xp += amount;
        return Xp;
    }
}

var ada = new Student("Ada");
ada.GainXp(50);
Console.WriteLine($"{ada.Name} has {ada.Xp} XP");

Key pieces

• The method with the same name as the class (Student(string name, int xp = 0)) is the constructor, it runs when you create a new instance.
• new Student("Ada") allocates a new object and runs its constructor.
• public fields and methods are accessible from outside the class, by convention C# method and property names use PascalCase (GainXp, not gainXp).