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Write line to text file with StreamWriter

#include "stdafx.h" using namespace System; using namespace System::IO; int main() {    StreamWriter^ sw = gcnew StreamWriter("textfile.txt");    sw->WriteLine("asdf");    sw->Flush();    sw->Close();    StreamWriter^ sw2 = File::CreateText("newtextfile.txt");    StreamReader^ sr = gcnew StreamReader("textfile.txt");    String^ line;    while ((line = sr->ReadLine()) != nullptr)    {       Console::WriteLine(line);    } }