#include <iostream>
using namespace std;
#include <string>
int main()
{
string Name = "Vaibhav_Yadav", R_Name;
int Roll = 2021071042, roll_no;
cout<<"Authentication Please Verify Yourself"<<endl;
try{
cout<<"Enter Your Name: ";
getline(cin, R_Name);
cout<<"Enter Your Roll No: ";
cin>>roll_no;
if(R_Name == Name && Roll == roll_no){
cout<<"Login Success"<<endl;
}else{
throw 401;
}
}
catch(...){
cout<<"Authentication failed"<<endl;
cout<<"Access Not Allowed"<<endl;
}
return 0;
}
#include <iostream>
#include <bits/stdc++.h>
#include <fstream>
#include <string>
using namespace std;
int main()
{
while(1){
int ch;
cout<<endl;
cout<<"Enter Your Choice: "<<endl;
cout<<"1. Write Into file"<<endl;
cout<<"2. Read From The file"<<endl;
cin>>ch;
switch(ch){
case 1:{
string Inputline;
cout<<"Enter What you want to insert to file"<<endl;
cout<<"Default Input will be 'This is Vaibhav Yadav and today I'm learning file handling in c++ with fstream'"<<endl;
// getline(cin, Inputline);
Inputline = "This is Vaibhav Yadav and today I'm learning file handling in c++ with fstream";
ofstream W_myfile("Name.txt");
W_myfile<<Inputline;
W_myfile.close();
}
break;
case 2:
{
string NameTxt;
ifstream R_myfile("Name.txt");
while(getline(R_myfile, NameTxt)){
cout<<NameTxt;
}
R_myfile.close();
}
break;
default:
cout<<"Wrong Input Yrr :("<<endl;
}
}
return 0;
}
#include<iostream>
using namespace std;
class Student
{
string name;
public:
Student(){
name = "Vaibhav Yadav";
cout<<"Constructor of Student Class has been Called"<<endl;
cout<<"Student Name is: "<<name<<endl;
}
~Student(){
cout<<"---Destructor Of Student Class has been called---"<<endl;
cout<<"---Memory for 'obj name' has been deallocated and memory has been released---"<<endl;
}
};
main()
{
Student stu;
return 0;
}
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