filehandling.cpp

C++/filehandling.cpp

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+/* File Handling with C++ using ifstream & ofstream class object*/
+/* To write the Content in File*/
+/* Then to read the content of file*/
+#include <iostream>
+
+/* fstream header file for ifstream, ofstream, 
+fstream classes */
+#include <fstream>
+
+using namespace std;
+
+// Driver Code
+int main()
+{
+	// Creation of ofstream class object
+	ofstream fout;
+
+	string line;
+
+	// by default ios::out mode, automatically deletes
+	// the content of file. To append the content, open in ios:app
+	// fout.open("sample.txt", ios::app)
+	fout.open("sample.txt");
+
+	// Execute a loop If file successfully opened
+	while (fout) {
+
+		// Read a Line from standard input
+		getline(cin, line);
+
+		// Press -1 to exit
+		if (line == "-1")
+			break;
+
+		// Write line in file
+		fout << line << endl;
+	}
+
+	// Close the File
+	fout.close();
+
+	// Creation of ifstream class object to read the file
+	ifstream fin;
+
+	// by default open mode = ios::in mode
+	fin.open("sample.txt");
+
+	// Execute a loop until EOF (End of File)
+	while (getline(fin, line)) {
+
+		// Print line (read from file) in Console
+		cout << line << endl;
+	}
+
+	// Close the file
+	fin.close();
+
+	return 0;
+}