Classes and private methods....

Question

The problem:
Create a class named Square that contains fi elds for area and
the length of a side and whose constructor requires a parameter
for the length of one side of a Square. Th e constructor
assigns its parameter to the length of the Square's side fi eld
and calls a private method that computes the area fi eld. Also
include read-only properties to get a Square's side and area.
Create a class named DemoSquares that instantiates an array
of ten Square objects with sides that have values of 1 through
10. Display the values for each Square

This is what I have done:
    class Square
    {
        public double area;
        public double sideLength;

        Square(double length)
        {
           sideLength = length;

           return;
        }
        public double SquareSide
        {
            get { return sideLength; }

        }
        public double SquareArea
        {
            get { return area; }

        }
        private static void AreaMethod()
        {

        }

I cant figure out how to call private method... How can they ask questions when they never taught how to solve!

Vulpes · Answer

As long as you have access to it calling a private method is just the same as calling a public method. However a private method will only be accessible within the class in which it is defined. This means that: 1. In the case of a private instance method there's no need to precede it with an object reference - 'this' is assumed. 2. In the case of a private static method there's no need to precede it with the name of a class - the current class name is assumed. However in both cases you can optionally specify 'this' or the current class name when calling the private method if you wish.

Jaganathan Bantheswaran · Answer

Hi What is the difficulties you found while call the private method. The below lines of code is working fine namespace CSharpTestConsoleApp { class Program { static void Main(string[] args) { Square f = new Square(10); } } public class Square { public double area; public double sideLength; public Square(double length) { sideLength = length; AreaMethod(); } public double SquareSide { get { return sideLength; } } public double SquareArea { get { return area; } } private static void AreaMethod() { // do some stuff here } } }