Why not initialize the creditor field directly?

Hi Florian,

You can create many instances of a class. If you hard-code the value of the member variables, each instance will be identical. If, however, you all the constructor to set the values, the user can determine the state of the instance when the instance is created.

Take a car class:

public class Car {
  private String mColor;

  public Car(String color) {
    mColor = color
  }
}

Here the user can set the colour of each instance of Car so we can create a customized instance suitable for our requirements. Otherwise, we'd have to have a RedCar class, a BlueCar class etc; that's not what object oriented programming is about. Like:

Car redCar = new Car("red");
Car blueCar = new Car("blue");

This uses one class template to create multiple instance of it, designed exactly how the user wants each instance to look. Obviously, real-world class can have more member variables to generate a greater degree of customization, but you see my point., hopefully.

Make sense?

Steve.