Array of float in C#

using System;

namespace arrayDemo

{

    class Program

    {

        static void Main(string[] args)

        {

            float[] arr = new float[3];

            arr[0]= 2.0f;

            arr[1]=2.5F;

            arr[2]=3.0F;

          

            //printing value of each element in the array

            foreach (float element in arr)

            {

                Console.Write("{0} ", element);

            }

            Console.ReadKey();

        }

    }

}

Declaring, defining and initializing the array of float at the same time in C#

using System;

namespace arrayDemo

{

    class Program

    {

        static void Main(string[] args)

        {

            float[] arr = {2.0f,2.5F,3.0f};

            //printing value of each element in the array

            foreach (float element in arr)

            {

                Console.Write("{0} ", element);

            }

            Console.ReadKey();

        }

    }

}

2 2.5 3

Array of double in C#

Declaring, defining and initializing the array of double at the same time in C#

using System;

namespace arrayDemo

{

    class Program

    {

        static void Main(string[] args)

        {

            double[] arr = new double[3];

            arr[0]= 2.0d;

            arr[1]=2.5D;

            arr[2]=3.0;

          

            //printing value of each element in the array

            foreach (double element in arr)

            {

                Console.Write("{0} ", element);

            }

            Console.ReadKey();

        }

    }

}

using System;

namespace arrayDemo

{

    class Program

    {

        static void Main(string[] args)

        {

            double[] arr = {2.0d,2.5D,3.0};

            //printing value of each element in the array

            foreach (double element in arr)

            {

                Console.Write("{0} ", element);

            }

            Console.ReadKey();

        }

    }

}

2 2.5 3

Array of decimal in C#

using System;

namespace arrayDemo

{

    class Program

    {

        static void Main(string[] args)

        {

            decimal[] arr = new decimal[3];

            arr[0]= 2.0m;

            arr[1]=2.5M;

            arr[2]=3.0M;

          

            //printing value of each element in the array

            foreach (decimal element in arr)

            {

                Console.Write("{0} ", element);

            }

            Console.ReadKey();

        }

    }

}

Declaring, defining and initializing the array of decimal at the same time in C#

using System;

namespace arrayDemo

{

    class Program

    {

        static void Main(string[] args)

        {

            decimal[] arr = {2.0m,2.5M,3.0M};

            //printing value of each element in the array

            foreach (decimal element in arr)

            {

                Console.Write("{0} ", element);

            }

            Console.ReadKey();

        }

    }

}

2.0 2.5 3.0

Array of struct in C#

using System;

namespace arrayDemo

{

    class Program

    {

        static void Main(string[] args)

        {

            Student[] arr = new Student[3];

            arr[0] = new Student("Tom", 10, 50.0f);

            arr[1] = new Student("Jerry", 20, 80.5f);

            arr[2] = new Student("Davis", 30, 70.0f);

            //printing values of each elements in the array

            foreach (Student element in arr)

            {

                element.display();

            }

            Console.ReadKey();

        }

    }

}

struct Student

{

    string name;

    int roll;

    float marks;

    public Student(string name, int roll, float marks)

    {

        this.name = name;

        this.roll = roll;

        this.marks = marks;

    }

    public void display()

    {

        Console.WriteLine("{0} {1} {2}", roll, name, marks);

    }

}

10 Tom 50

20 Jerry 80.5

30 Davis 70

using System;

namespace arrayDemo

{

    class Program

    {

        static void Main(string[] args)

        {

            Student[] arr = {new Student("Tom", 10, 50.0f),

                             new Student("Jerry", 20, 80.5f),

                             new Student("Davis", 30, 70.0f)};

            //printing values of each elements in the array

            foreach (Student element in arr)

            {

                element.display();

            }

            Console.ReadKey();

        }

    }

}

struct Student

{

    string name;

    int roll;

    float marks;

    public Student(string name, int roll, float marks)

    {

        this.name = name;

        this.roll = roll;

        this.marks = marks;

    }

    public void display()

    {

        Console.WriteLine("{0} {1} {2}", roll, name, marks);

    }

}

Array of enum in C#

Array of enum means array which contains only symbolic constants of that enum.

using System;

namespace arrayDemo

{

    class Program

    {

        enum Color { Red, Green, Blue };

        static void Main(string[] args)

        {

            Color[] arr = new Color[3];

            arr[0] = Color.Green;

            arr[1] = Color.Red;

            arr[2] = Color.Blue; 

            //printing value of each element in the array

            foreach (int element in arr)

            {

                Console.WriteLine(element); 

            }

            Console.ReadKey();

        }

    }

}

In the above example array of enum arr can keep only Color.Red, Color.Green and Color.Blue

For any other value we have first type cast into Color. For example:

arr[0] = (Color)5;

Array of class in C#

Sample code:

using System;

namespace arrayDemo

{

    class Program

    {

        static void Main(string[] args)

        {

            Student[] arr = new Student[3];

            arr[0] = new Student("Tom",10,50.0f);

            arr[1] = new Student("Jerry", 20, 80.5f);

            arr[2] = new Student("Davis", 30, 70.0f);

            //printing values of each elements in the array

            foreach (Student element in arr)

            {

                element.display();

            }

            Console.ReadKey();

        }

    }

}

class Student

{

    private string name;

    private int roll;

    private float marks;

    public Student(string name,int roll,float marks)

    {

        this.name = name;

        this.roll = roll;

        this.marks = marks;

    }

    public void display(){

        Console.WriteLine("{0} {1} {2}",roll,name,marks);

    }

}

Output:

10 Tom 50

20 Jerry 80.5

30 Davis 70

using System;

namespace arrayDemo

{

    class Program

    {

        static void Main(string[] args)

        {

            Student[] arr = {new Student("Tom", 10, 50.0f),

                             new Student("Jerry", 20, 80.5f),

                             new Student("Davis", 30, 70.0f)};

            //printing values of each elements in the array

            foreach (Student element in arr)

            {

                element.display();

            }

            Console.ReadKey();

        }

    }

}

class Student

{

    private string name;

    private int roll;

    private float marks;

    public Student(string name, int roll, float marks)

    {

        this.name = name;

        this.roll = roll;

        this.marks = marks;

    }

    public void display()

    {

        Console.WriteLine("{0} {1} {2}", roll, name, marks);

    }

}