DSL E29

 Data Structure Lab :

Practical 29 :

Problem Statement: 

Queues are frequently used in computer programming, and a typical example is the creation of a job queue by an operating system. If the operating system does not use priorities, then the jobs are processed in the order they enter the system. Write C++ program for simulating job queue. Write functions to add job and delete job from queue

Check Out Code Here 👇

 
// Author : SPPU CSE GURU  

#include<iostream>  
   
 using namespace std;  
    
 class Queue{  
      private:  
       int front,rear,max;  
      public:  
           int Q[10];  
           Queue()  
        {  
                 front=0;  
                 rear=-1;  
                 max=10;  
        }  
           void EnQueue();  
           void DeQueue();  
           void Display();  
 };  
   
   
 void Queue::EnQueue()  
 {    
      int data;  
      cout<<"Enter Job no. to Add "<<endl;  
      cin>>data;  
   if(rear<max-1){  
             
                rear++;  
                Q[rear]=data;  
           }       
        
      else{  
           cout<<"Queue is FULL can't add Job"<<endl;  
      }  
        
 }  
   
   
 void Queue::DeQueue()  
 {  
      if(front<=rear){  
           cout<<"Job "<<Q[front]<<" Deleted Successfully"<<endl;  
           front++;  
           }  
      else{  
           cout<<"Job Queue is empty, Add Jobs"<<endl;  
           front=0;  
           rear=-1;  
      }  
 }  
   
   
 void Queue::Display(){  
        
      if(front>rear || rear<front){  
           cout<<"Queue is Empty"<<endl;  
      }  
      else{  
      int temp;  
      temp=front;  
      cout<<"Queue is : ";  
      while(temp<=rear){  
           cout<<Q[temp]<<' ';  
           temp++;  
      }  
 }  
 }  
   
   
 int main(){  
      int choice;  
      char res;  
        
      Queue obj;  
        
      do  
      {  
             
           cout<<"\n1.Add Job \n2.Remove Job"<<endl;   
     cout<<"Enter your Choice : "<<endl;   
     cin>>choice;   
     cout<<endl;  
     switch(choice)  
           {   
       case 1:   
                 obj.EnQueue();  
                 obj.Display();  
              break;   
       case 2:   
                   obj.DeQueue();  
                   obj.Display();  
              break;    
     }  
     cout<<"\nDo you want to continue (y or n)"<<endl;  
           cin>>res;  
      }while(res=='y');  
 }  
   

Code can get updated so also come back later to see if there is any changes. Also if there is any problem with code you can comment below. Do share with your friends.😊