Exercises and solutions for the third day.
Create a class called MyRandom, which derives from the .NET class Random, but returns different values. Implement a new method called Next() and a possibility to access the protected method Sample() from outside.
Create a structure called Point3, which contains 3 (private) float variables called x, y and z. Create a property for each variable. Changing a variable (setting it) should result in output on the console. The output has to tell us which variable changed and what changed (old value, new value).
Look up the syntax for overloading the addition operator + (look it up by viewing the meta data (definition) of e.g. the decimal structure). Implement it for your structure.
Finally use your structure in a new version of your calculator. This time not integers, but Point3s will be used.
Start by creating an abstract class called Vehicle. Create two abstract methods called Accelerate() and Brake(). Additionally you should place an (protected) integer variable called tires. Add a property called Tire, which defines a get block for the variable.
Derive a class called Car from Vehicle. Implement the two functions in such a way, that they display the state change like "The car is is accelerating" or "The car is braking" on the console. Additionally extend the class with an integer property called Gears (with get and set) and set the value of tires to 4.
Finally derive from Car and call the new class Porsche. Override the method Accelerate() with some string that might represent your attitude towards driving a Porsche.
Extend the class Car of assignment 13 with a copy-constructor, i.e. a constructor which takes an instance of the own class as input parameter, and uses this instance to create a (usually deep) copy of all fields.
Also override the method Equals() in a way that it is possible to compare one instance of the class Car with another for equality.
Finally try to cast an instance of your Car class to the Porsche class. Why is this not possible?
Write a project that makes storing plot-data in C# objects possible. The project has to fulfill the following requirements:
- An arbitrary amount of data series should be storable.
- Each series consists of an arbitrary amount of data points.
- Each data point consists of an X and a Y value.
- Each series contains information about the min x and y, as well as max x and y values.
- Each series has a label and a color (just a string) assigned.
The project aims to be very generic, such that the created plotting class construct could be used with various renderes. A renderer is a special class, which takes some input, analyzes it and starts streaming some output in a certain form. In this case you could input an instance of your plotting class into some renderer, which would transform it to e.g. HTML output, displaying something on the console or a bitmap image.
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