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C++ Program File Handling to write and read text in/from file

C++ Program File Handling to write and read text in/from file

This is a simple File Handling Program in C++ for Write or Read text programming examples.

#include <iostream>
#include <fstream>
 
using namespace std;
 
int main()
{
 fstream file; //object of fstream class
 
 //opening file "sample.txt" in out(write) mode
 file.open("sample.txt",ios::out);
 
 if(!file)
 {
 cout<<"Error in creating file!!!"<<endl;
 return 0;
 }
 
 cout<<"File created successfully."<<endl;
 //write text into file
 file<<"ABCD.";
 //closing the file
 file.close();
 
 //again open file in read mode
 file.open("sample.txt",ios::in);
 
 if(!file)
 {
 cout<<"Error in opening file!!!"<<endl;
 return 0;
 } 
 
 //read untill end of file is not found.
 char ch; //to read single character
 cout<<"File content: ";
 
 while(!file.eof())
 {
 file>>ch; //read single character from file
 cout<<ch;
 }
 
 file.close(); //close file
 
 return 0;
}