Question

write a C++ code which reads the contents of the text file.

Answer 1

//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;
}

Answer 2

//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; }