Generics

swap.cs

public void SwapInt(ref int lhs,ref int rhs)
{
    int temp;
    temp = lhs;
    lhs = rhs;
    rhs = temp;
}

public void SwapString(ref string lhs, ref string rhs)
{
    string temp;
    temp = lhs;
    lhs = rhs;
    rhs = temp;
}