Answer to Question #16426 in C++ for Abhishek Anand
2012-10-15T08:46:46-04:00
Write an interactive menu driven program to create a text file and display it. Create another file by converting each line of textfile into uppercase. Also, display the size of the textfile.
1
2012-10-18T08:17:45-0400
#include <iostream> #include <fstream> #include <string> #include <sstream> #include <stdlib.h> using namespace std; void stoupper(string& s) { string::iterator i = s.begin(); string::iterator end = s.end(); while (i != end) { & *i = toupper((unsigned char) *i); & ++i; } } int main() { fstream File; string fileName; int selection = 0; while (selection != 4) { & system("cls"); & cout << "-------------------------------" << endl; & cout << " M& E& N& U" << endl; & cout << "-------------------------------" << endl; & cout << " 1. Create text file" << endl; & cout << " 2. Display text file" << endl; & cout << " 3. Convert text file " << endl; & cout << " 4. Exit" << endl; & cout << "-------------------------------" << endl; & cout << " Choose: "; & cin >> selection; & switch (selection) { & case 1: { & cout << "Enter file name: "; & cin >> fileName; & File.open(fileName.c_str(), ios::out); & system("cls"); & cout & lt;< "Enter some text to file (to finish please input empty line)" & lt;< endl; & string line; & cin.ignore(); & getline(cin, line); & while (line.length() != 0) { & File << line << endl; & getline(cin, line); & } & File.close(); & break; & } & case 2: { & cout << "Enter file name: "; & cin >> fileName; & File.open(fileName.c_str(), ios::in); & system("cls"); & if (!File) { & cerr << "File error!" << endl; & return 0; & } else { & string line; & while (!File.eof()) { & getline(File, line); & cout << line << endl; & } & File.close(); & } & getchar(); & getchar(); & break; & } & case 3: { & cout << "Enter input file name: "; & cin >> fileName; & cout << "Enter output file name: "; & string out; & cin >> out; & File.open(fileName.c_str(), ios::in); & fstream outFile(out.c_str(), ios::out); & if (!File) { & cerr << "File error!" << endl; & return 0; & } else { & string line; & while (!File.eof()) { & getline(File, line); & stoupper(line); & outFile << line << endl; & } & File.close(); & } & break; & } & } } return 0; }
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