C# Code {codecitation class="brush: csharp; gutter: true;" width="650px"} using System;
using System.Collections.Generic;
using System.Text;
namespace ConsoleApplication46
{
class Program
{
/*first creating an array of size 5*/
int[] arr = new int[5];
/*declaring rear for insertion n front for deletion in a queue
for example-array is 5 in size
* here 0 memory location is rear end 0 memory location is front
so when we start inserting we will increment rear by 1
* everytime we enter a value in array till array becomes full
and similary for deletion we will increment front by 1 everytime we delete an
* element from the array*/
int rear = -1;
int front = -1;
/*creating insertion method that will insert value in array*/
public void insert(int value)
{
/*we r checking if array is empty or not*/
if (rear == -1)
{
/*insertion starts so will increment both rear n front by 1*/
front=0;
rear++;
/*now we will store the int variable in array at rear position */
arr[rear] = value;
}
else
{
/*here the array is not empty so
* we are entering value in arrays next memory space
by incrementing the rear*/
rear++;
arr[rear] = value;
}
Console.WriteLine("Data has been entered");
Console.ReadLine();
}
/*this method will start deleting array elements from 0 to 4*/
public void delete()
{
/*again checking if array is empty */
if (front == -1)
{
Console.WriteLine("Queue is already empty");
}
else
{
Console.WriteLine("the element deleted is ={0}",arr[front]);
Console.ReadLine();
front++;
}
}
public void show_elements_entered()
{
/*Checking if queue is empty*/
if (rear == -1)
{
Console.WriteLine("Queue is empty");
Console.ReadLine();
}
else
{
Console.WriteLine("Elements entered by u are as follows");
for (int i = 0; i<5; i++)
{
Console.Write("<" + (i + 1) + ">");
Console.Write(arr[i]);
Console.ReadLine();
}
}
}
/*now this method will show remaning array elements after deletion*/
public void display_after_deletion()
{
Console.WriteLine("Elements after deletion");
/*in this i = front caze front is used for deletion*/
for (int i = front; i < 5; i++)
{
Console.Write(arr[i]);
Console.ReadLine();
}
}
static void Main(string[] args)
{
Program obj = new Program();
/*here i hv created a menu*/
do
{
Console.Clear();
Console.WriteLine("************************");
Console.WriteLine("******* Main Menu*******");
Console.WriteLine("1.insert ");
Console.WriteLine("2.Delete ");
Console.WriteLine("3.Display ");
Console.WriteLine("4.array after deletion ");
Console.WriteLine("************************");
Console.WriteLine(" Enter ur choice");
int choice = int.Parse(Console.ReadLine());
/*applying switch case*/
switch (choice)
{
case 1:
{
/*taking value from user*/
Console.WriteLine("Enter a number");
int y = int.Parse(Console.ReadLine());
obj.insert(y);
break;
}
case 2: { obj.delete(); break; }
case 3: { obj.show_elements_entered(); break; }
case 4: { obj.display_after_deletion(); break; }
default: { Console.WriteLine("Invalid"); break; }
}
} while (true);
/*and this is how its done*/
}
}
}
{/codecitation} Thank you Bhanfari
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