C# - 6.0 Index Initializers

Before C# 6

static void Main ( string [ ] args )
{
    var dic = new Dictionary<int, string>();
    dic.Add( 1, "Cash" );
    dic.Add( 2, "Mary" );
}

//or

static void Main ( string [ ] args )
{
    var dic = new Dictionary<int, string>()
    {
        { 1, "Cash" },
        { 2, "Mary" }
    };
}

C# 6

static void Main ( string [ ] args )
{
    var dic = new Dictionary<int , string>()
    {
        [1] = "Cash",
        [2] = "Mary"
    };
}