Question

Write a program in which, you have to compare two files "data1.txt" and "data2.txt" either they are
contain same data or not. If files are same display true otherwise false.
data1.txt
Hello
Happy
Hello
data2.txt
Hello
Hello
Happy

C++ program ​

Answer 1

Program:

#include<iostream>

#include<fstream>

#include<string>

using namespace std;

int main()

{

ofstream f_1("data1.txt");

ofstream f_2("data2.txt");

 

f_1<<"Hello\nHappy\nHello";

f_2<<"Hello\nHello\nHappy";

 

f_1.close();

f_2.close();

 

ifstream f1("data1.txt");

ifstream f2("data2.txt");

 

int flag = 0;

char ch1 , ch2;

while(1)

{

 f1>>ch1;

 f2>>ch2;

 if(f1.eof() && f2.eof())

 {

  break;

 }

 if(ch1 != ch2)

 {

  flag = 1;

  break;

 }

}

if(flag == 1)

{

 cout<<"False";

}

else

{

 cout<<"True";

}

 

f1.close();

f2.close();

 

return 0;

}

Output:

False