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#include <iostream>
#include <string>
#include <fstream>
#include <cstring>
using namespace std;
int bookAppointment()
{
system("cls");
cout<<"\n ----- Book Your Appointment ---- \n";
cout<<"\n ----- Availbale slots ---- \n";
//check if record already exist..
ifstream read;
read.open("appointment.dat");
int hoursbook = 8;
int arr[13] = {0,0,0,0,0,0,0,0,0,0,0,0,0};
int recordFound =0;
if(read)
{
string line;
char key = 'A';
int i = 9;
while(getline(read, line)) {
char temp = line[0];
int index = (temp - 65);
arr[index]=1;
recordFound = 1;
}
if(recordFound == 1)
{
cout<<"\n Appointment Summary by hours:";
char key = 'A';
int hours = 9;
for(int i = 0; i<=12; i++)
{
if(i == 0){
if(arr[i] == 0)
char green[]={0x1b,'[','1',';','3','2','m',0};
cout<<green<<"\n "<<key<<"-> 0"<<hours<<" - Available";
else
cout<<"\n "<<key<<"-> 0"<<hours<<" - Booked";
}
else
{
if(arr[i] == 0)
cout<<"\n "<<key<<"->"<<hours<<" - Available";
else
cout<<"\n "<<key<<"->"<<hours<<" - Booked";
}
hours++; key++;
}
}
read.close();
}
if(recordFound == 0){
cout<<"\n Appointment Available for following hours :";
char key = 'A';
for(int i = 9; i<=21; i++)
{
if(i==9)
cout<<"\n "<<key<<" -> 0"<<i<<" - Available";
else
cout<<"\n "<<key<<" -> "<<i<<" - Available";
key++;
}
}
char choice;
cout<<"\n\n Input your choice : ";
cin>>choice;
if( !(choice >= 'A' && choice <='Z'))
{
cout<<"\n Error : Invalid Selection";
cout<<"\n Please selction correct value from menu A- Z";
cout<<"\n Press any key to continue";
getchar();getchar();
system("cls");
bookAppointment();
}
int index = (choice-65 );
int isBooked = 1;
if(arr[index] == 0)
isBooked = 0;
if(isBooked ==1)
{
cout<<"\n Error : Appointment is already booked for this Hour";
cout<<"\n Please select different time !!";
cout<<"\n Press any key to continue!!";
getchar();getchar();
system("cls");
bookAppointment();
}
string name;
cout<<"\n Enter your first name:";
cin>>name;
ofstream out;
out.open("appointment.dat", ios::app);
if(out){
out<<choice<<":"<<name.c_str()<<"\n";
out.close();
cout<<"\n Appointment booked for Hours : "<< (choice-65) + 9 <<" successfully !!";
}
else
{
cout<<"\n Error while saving booking";
}
cout<<"\n Please any key to continue..";
getchar(); getchar();
return 0;
}
int existingAppointment()
{
system("cls");
cout<<"\n ----- Appointments Summary ---- \n";
//check if record already exist..
ifstream read;
read.open("appointment.dat");
int hoursbook = 8;
int arr[13] = {0,0,0,0,0,0,0,0,0,0,0,0,0};
int recordFound =0;
if(read)
{
string line;
char key = 'A';
int i = 9;
while(getline(read, line)) {
char temp = line[0];
int index = (temp - 65);
arr[index]=1;
recordFound = 1;
}
if(recordFound == 1)
{
cout<<"\n Appointment Summary by hours:";
char key = 'A';
int hours = 9;
for(int i = 0; i<=12; i++)
{
if(arr[i] == 0)
cout<<"\n "<<key<<"->"<<hours<<" - Available";
else
cout<<"\n "<<key<<"->"<<hours<<" - Booked";
hours++; key++;
}
}
read.close();
}
else
{
char key = 'A';
for(int i = 9; i<=21; i++)
{
if(i==9)
cout<<"\n "<<key<<" -> 0"<<i<<" - Available";
else
cout<<"\n "<<key<<" -> "<<i<<" - Available";
key++;
}
}
cout<<"\n Please any key to continue..";
getchar(); getchar();
return 0;
}
int main(int argc, char** argv) {
while(1)
{
system("cls");
cout<<"\t\t\tDoctor Appointment System\n";
cout<<"----------------------------------------\n\n";
cout<<"1. Book Appointment\n";
cout<<"2. Check Existing Appointment\n";
cout<<"0. Exit\n";
int choice;
cout<<"\n Enter you choice: ";
cin>>choice;
switch(choice)
{
case 1: bookAppointment(); break;
case 2: existingAppointment(); break;
case 0:
while(1)
{
system("cls");
cout<<"\n Are you sure, you want to exit? y | n \n";
char ex;
cin>>ex;
if(ex == 'y' || ex == 'Y')
exit(0);
else if(ex == 'n' || ex == 'N')
{
break;
}
else{
cout<<"\n Invalid choice !!!";
getchar();
}
} break;
default: cout<<"\n Invalid choice. Enter again ";
getchar();
}
}
return 0;
} Write, Run & Share C++ code online using OneCompiler's C++ online compiler for free. It's one of the robust, feature-rich online compilers for C++ language, running on the latest version 17. Getting started with the OneCompiler's C++ compiler is simple and pretty fast. The editor shows sample boilerplate code when you choose language as C++ and start coding!
OneCompiler's C++ online compiler supports stdin and users can give inputs to programs using the STDIN textbox under the I/O tab. Following is a sample program which takes name as input and print your name with hello.
#include <iostream>
#include <string>
using namespace std;
int main()
{
string name;
cout << "Enter name:";
getline (cin, name);
cout << "Hello " << name;
return 0;
}
C++ is a widely used middle-level programming language.
When ever you want to perform a set of operations based on a condition If-Else is used.
if(conditional-expression) {
//code
}
else {
//code
}
You can also use if-else for nested Ifs and If-Else-If ladder when multiple conditions are to be performed on a single variable.
Switch is an alternative to If-Else-If ladder.
switch(conditional-expression){
case value1:
// code
break; // optional
case value2:
// code
break; // optional
......
default:
code to be executed when all the above cases are not matched;
}
For loop is used to iterate a set of statements based on a condition.
for(Initialization; Condition; Increment/decrement){
//code
}
While is also used to iterate a set of statements based on a condition. Usually while is preferred when number of iterations are not known in advance.
while (condition) {
// code
}
Do-while is also used to iterate a set of statements based on a condition. It is mostly used when you need to execute the statements atleast once.
do {
// code
} while (condition);
Function is a sub-routine which contains set of statements. Usually functions are written when multiple calls are required to same set of statements which increases re-usuability and modularity. Function gets run only when it is called.
return_type function_name(parameters);
function_name (parameters)
return_type function_name(parameters) {
// code
}