Answer to Question #274028 in C++ for Jack

Question

1. Write a Program in C++ to copy the contents of the file from one location to another location (Ex: C: \Demo \Test.txt to D: \Demo \Test.txt) and also check the content in both files are same or not. 

2. Write a program in C++ to enter a string into file and read the same file to display all the words in the file with stating letter ‘p’.

Answer 1

1. Write a Program in C++ to copy the contents of the file from one location to another location (Ex: C: \Demo \Test.txt to D: \Demo \Test.txt) and also check the content in both files are same or not. 

#include<iostream>
using namespace std;
int main()
{
    char ch, sFile[20], tFile[20];
    FILE *fs, *ft;
    cout<<"ENTER SOURCE FILE NAME (Include correct file extension e.g mydocument.docs ): ";
    cin>>sFile;
    fs = fopen(sFile, "r");
    if(fs == NULL)
    {
        cout<<"\nERROR!!!, TRY AGAIN";
        return 0;
    }
    cout<<"\nENTER TARGET FILE NAME (Include correct file extension e.g mydocument.docs): ";
    cin>>tFile;
    ft = fopen(tFile, "w");
    if(ft == NULL)
    {
        cout<<"\nError Occurred!";
        return 0;
    }
    ch = fgetc(fs);
    while(ch != EOF)
    {
        fputc(ch, ft);
        ch = fgetc(fs);
    }
    cout<<"\nFILE COPIED SUCCESSFULLY.";
    fclose(fs);
    fclose(ft);
    cout<<endl;
    return 0;
}

2. Write a program in C++ to enter a string into file and read the same file to display all the words in the file with stating letter ‘p’.

#include <iostream>
#include <fstream>
using namespace std;


int main () {
  int a, b;
  // writting to the file 
  ofstream myfile;
  myfile.open ("example.txt");
  myfile << "Writing this to a file.\n";
  myfile.close();
    // reading from the file 
ifstream bd; 
myfile.open("file.txt");


if (myfile.is_open())
	while (bd >> a >> b)
    	cout << a << b << endl;


else cout << "ERROR";
  return 0;
}