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C# Beyond Basics
Practicing `static` Keyword
In this problem, you need to:
- Create a new private field called
totalCars
of typedouble
which tracks the total number of Car objects created - Create a getter method called
getTotalCars
which simply returns the number of objects - Make sure the value of the
totalCars
field is incremented every time a new Car object is created.
index.cs
1. The field which tracks the number of objects should be static because it always stores some data.
2. It was explained in the Access Modifiers chapter that a getter method is simply a public method which returns the value of a private field. In this case
3. The
2. It was explained in the Access Modifiers chapter that a getter method is simply a public method which returns the value of a private field. In this case
getTotalCars
should return totalCars
.3. The
getTotalCars
method should also be static because we want to use it without an instance.
using System;
class Car
{
int modelYear;
double mileage;
string brandName;
public Car(string brandName, int modelYear, double mileage)
{
this.brandName = brandName;
this.modelYear = modelYear;
this.mileage = mileage;
// Write code below this line
totalCars += 1;
// Write code above this line
}
// Write code below this line
private static double totalCars;
public static double getTotalCars()
{
return totalCars;
}
// Write code above this line
}
class ConsoleApp
{
static void Main()
{
Console.WriteLine(Car.getTotalCars());
Car car1 = new Car("Toyota", 2022, 25.5);
Car car2 = new Car("Honda", 2020, 30.2);
Car car3 = new Car("Ford", 2021, 28.8);
Console.WriteLine(Car.getTotalCars());
}
}
Everything was clear?
Section 4. Chapter 6
Course Content
C# Beyond Basics
C# Beyond Basics
Practicing `static` Keyword
In this problem, you need to:
- Create a new private field called
totalCars
of typedouble
which tracks the total number of Car objects created - Create a getter method called
getTotalCars
which simply returns the number of objects - Make sure the value of the
totalCars
field is incremented every time a new Car object is created.
index.cs
1. The field which tracks the number of objects should be static because it always stores some data.
2. It was explained in the Access Modifiers chapter that a getter method is simply a public method which returns the value of a private field. In this case
3. The
2. It was explained in the Access Modifiers chapter that a getter method is simply a public method which returns the value of a private field. In this case
getTotalCars
should return totalCars
.3. The
getTotalCars
method should also be static because we want to use it without an instance.
using System;
class Car
{
int modelYear;
double mileage;
string brandName;
public Car(string brandName, int modelYear, double mileage)
{
this.brandName = brandName;
this.modelYear = modelYear;
this.mileage = mileage;
// Write code below this line
totalCars += 1;
// Write code above this line
}
// Write code below this line
private static double totalCars;
public static double getTotalCars()
{
return totalCars;
}
// Write code above this line
}
class ConsoleApp
{
static void Main()
{
Console.WriteLine(Car.getTotalCars());
Car car1 = new Car("Toyota", 2022, 25.5);
Car car2 = new Car("Honda", 2020, 30.2);
Car car3 = new Car("Ford", 2021, 28.8);
Console.WriteLine(Car.getTotalCars());
}
}
Everything was clear?
Section 4. Chapter 6