gistfile1.txt

namespace SoloLearn //example 1
{
	class Program
	{
		static void Main(string[] args)
		{
			int[ ] arr = {11, 35, 62, 555, 989};
			int sum = 0; 
			
			int x = 0; //why does this work when example 2 doesn't work
			for (  ; x < 5; x++) {
				sum += arr[x];
			}
			Console.WriteLine(sum);
		}
	}
}


namespace SoloLearn //example 2. (similar to 3)  why no output?
{
	class Program
	{
		static void Main(string[] args)
		{
			int[ ] a = new int[10];
			
			int k = 0; //leads to no output. why?
			for ( ; k < 10; k++) 
				a[k] = k*2;
			
			for ( ; k < 10; k++) 
				Console.WriteLine(a[k]);
			
		}
	}
}


namespace SoloLearn //example 3
{
	class Program
	{
		static void Main(string[] args)
		{
			int[ ] a = new int[10];
			
			int k = 0; /* why does it cause an error message? how to understand scope better? A local or parameter named 'k' cannot be declared in this scope because that name is used in an enclosing local scope to define a local or parameter */
			for ( ; k < 10; k++) 
				a[k] = k*2;
			
			for (int k = 0; k < 10; k++) //int k = 0; in for loop
				Console.WriteLine(a[k]);
			
		}
	}
}


namespace SoloLearn //example 4
{
	class Program
	{
		static void Main(string[] args)
		{
			int[ ] a = new int[10];
			
			
			for ( int k = 0; k < 10; k++) 
				a[k] = k*2; 
			
			for (int k = 0; k < 10; k++) 
				Console.WriteLine(a[k]);
			
		}
	}
}