What?
A struct is essentially a small class which is stored on the stack rather than the heap.
Why?
The benefits of a struct is that they have less overhead than a class which makes them more efficient, there are some key things to take into account when deciding if you should use a struct rather than a class:
- Represent a single value logically
- Has an instance size that is less than 16 bytes
- Is not frequently changed after creation
- Is not cast to a reference type (Casting is the process of converting between types)
How?
public struct Employee
{
private string firstName;
private string lastName;
private int employeeID;
public Employee(string firstName, string lastName, int employeeID)
{
this.firstName = firstName;
this.lastName = lastName;
this.employeeID = employeeID;
}
public override string ToString()
{
string fullName = this.firstName + " " + this.lastName;
return fullName + ", Employee ID: " + employeeID;
}
}