Find the error(s) in each of the following code segments and explain how to correct it:

a) i = 1;
while (i <= 10);
++i;
}

b) for (k = 0.1; k != 1.0; k += 0.1)
{
Console.WriteLine(k);
}

c) switch (n)
{
case 1:
Console.WriteLine("The number is 1");
case 2:
Console.WriteLine("The number is 2");
break;
default:
Console.WriteLine("The number is not 1 or 2");
break;
}

d) The following code should display the values 1 to 10:
n = 1;
while (n < 10)
{
Console.WriteLine(n++);
}