int x = 3;
cout << "x is " << x << endl;

int _tmain(void)
{
    // TODO: Please replace the sample code below 
    //       with your own.
    Console::WriteLine(S"Hello World");
    return 0;
}

#include <iostream.h>
// ...
    Console::WriteLine(S"Hello World");
    int x = 3;
    cout << "x is " << x << endl;

warning C4995: '_OLD_IOSTREAMS_ARE_DEPRECATED': 
name was marked as #pragma deprecated

#include <iostream>
using namespace std;

int x = 3;
Console.WriteLine("x is {0}",x);

error C2665: 'System::Console::WriteLine' : none of the 19 
overloads can convert parameter 2 from type 'int'
        boxpin.cpp(7): could be 'void System::Console::WriteLine(
System::String __gc *,System::Object __gc *)'
        boxpin.cpp(7): or       'void System::Console::WriteLine(
System::String __gc *,System::Object __gc * __gc[])'
        while trying to match the argument list '(char [9], int)'

Console::WriteLine("x is {0}",__box(x));