What is the meaning of{0} in this Console.WriteLine??(Thanks for your support)

Question

namespace SoloLearn
{
class Program
{
static void Main(string[] args)
{
for (int x = 10; x < 15; x++)
{
Console.WriteLine("Value of x: {0}", x);
}
}
}
}

Answer 1

Run the code in play ground and observe output...
The value of x is replaced by {0} in output..
It's from same syntax of c printf function..
Ex:
("....{0}{1}{2}...", x, y, z)
=>{0} is replaced by x value
=>{1}.is replaced by y value
=>{2} is replaced by z value......
...
...