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C++ program to write and read text in/from file

mahmoud2506
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2022-05-05
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C++ program to write and read text in/from file

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mahmoud2506
2022-05-05
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Write and read text in/from file

 

//C++ program to write and read text in/from file.
#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;
}

Output

 
File created successfully.
File content: ABCD.

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total answers (1)

C++ programming File Handling/ File Streams Examples
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