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constract c++ program to creat an queue using arrays

Scorpion king answered on February 15, 2023 Popularity 1/10 Helpfulness 1/10

answer constract c++ program to creat an queue using arrays

constract c++ program to creat an queue using arrays

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queue using arrays

#include<iostream>
using namespace std;
class newQueue
{
	private:
	int rear;
	int front;
	int size;
	int previousitem;
	int count;
	int* item;
	public:
	newQueue();
	newQueue(int totalsize);
	void EnQueue(int value);
	void display();
	void totalitems();
	void Peek();
	int DeQueue();
	bool isfull();
	bool isempty();
};
newQueue::newQueue()
{ 
    size=101;
	front=-1;
	rear=-1;
	previousitem=0;
	count=0;
	item=new int[size];
}

bool newQueue::isfull()
{
return(count==size);
}
bool newQueue::isempty()
{
return(count==0);
}
void newQueue::EnQueue(int value)
{
	if(isfull())
	{
    cout<<"OverFlow"<<endl;
    }
	else
	{
	rear=rear+1%size;	
	item[rear]=value;
	count++;
    }
}
int newQueue::DeQueue()
    {
	if(isempty())
	{
	cout<<"UnderFlow"<<endl;
	return 0;
	}
	else
	{
	front=front+1%size;
	previousitem=item[front];
	count--;
	return previousitem;
	}
    }
void newQueue::display()
{
if(isempty())
	{
	cout<<"UnderFlow"<<endl;
	}
else
{
cout<<"Queue Elements\n";
for(int i=front;i<=rear;i++)
{
cout<<item[i]<<endl;	
}	
}
}
void newQueue::totalitems()
{
cout<<count<<endl;		
}
void newQueue::Peek()
{
if(isempty())
	{
	cout<<"UnderFlow"<<endl;
	}
	else
	{
	previousitem=item[front];	
	cout<<previousitem;
	}
}    
int main()
{
newQueue obj;
int x;
int totalsize;
int value;
char c;
do
{
cout<<"\t\tWELCOME\n";
cout<<"MAIN MENU\n";	
cout<<"1=EnQueue\n";
cout<<"2=DeQueue\n";
cout<<"3=Display\n";
cout<<"4=Count\n";
cout<<"5=isEmpty\n";
cout<<"6=PEEK\n";
cout<<"7=Quit\n";
cin>>x;
switch(x)
{
case 1:
{
cout<<"Insert Element In the Queue"<<endl;
cin>>value;
obj.EnQueue(value);
break;	
}
case 2:
{
cout<<"Front Most Element OF The Queue"<<endl;
cout<<obj.DeQueue();
break;	
}
case 3:
{
obj.display();
break;	
}
case 4:
{
cout<<"Total Elements IN Queue"<<endl;
obj.totalitems();
break;	
}
case 5:
{
if(obj.isempty())
{
cout<<"Queue IS Empty\n";	
}
else
{
cout<<"Not Empty\n";
}
break;	
}
case 6:
{
cout<<"Item Present at the Front of Queue\n";
obj.Peek();
cout<<"\n";
break;	
}
case 7:
{
return 0;
}	
}
cout<<"Do you Want TO Run Again(Y/N)\n";
cin>>c;
}while(c=='y'||c=='Y');
return 0;	
}

Popularity 1/10 Helpfulness 1/10 Language cpp

Source: Grepper

Tags: arrays c++ queue using

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Contributed on Feb 15 2023

Scorpion king

0 Answers Avg Quality 2/10

constract c++ program to creat an queue using arrays

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