Please help with the following C# Please explain the following code and some of the syntax like what does like this {0} and {1}. and this {1} : {2}" What I'm most looking for is understanding what the curly braces do and the colon: namespace CompareNames

Please help with the following C#

Please explain the following code and some of the syntax like what does like this {0} and {1}.        and this {1} : {2}" What I'm most looking for is understanding what the curly braces do and the  colon:

namespace CompareNames
{
class Program
{
static void Main(string[] args)
{
string name1 = "Andrew";
string name2 = "Andrew";
string name3 = "Martin";
Console.WriteLine("compare {0} to {1} : {2}", name1, name2, name1 == name2);
Console.WriteLine("compare {0} to {1} : {2}", name1, name3, name1 == name3);
Console.WriteLine();

Console.WriteLine("{0} and {1} : Equals() method gives {2}",
name1, name2, name1.Equals(name2));
Console.WriteLine("{0} and {1} : Equals() method gives {2}",
name1, name3, name1.Equals(name3));
Console.WriteLine();
Console.WriteLine("{0} and {1} : CompareTo() method gives {2}",
name1, name2, name1.CompareTo(name2));
Console.WriteLine("{0} and {1} : CompareTo() method gives {2}",
name1, name3, name1.CompareTo(name3));
Console.WriteLine();
Console.WriteLine("{0} and {1} : Compare() method gives {2}",
name1, name2, String.Compare(name1, name2));
Console.WriteLine("{0} and {1} : Compare() method gives {2}",
name1, name3, String.Compare(name1, name3));

}
}
}