C# - ITERATING ARRAY

In the previous tutorial we have seen how to iterate an array.

for (int i = 0; i <= 4; i++)
{
	System.Console.WriteLine(arr[i]);
}

Now, let us see the easiest way to iterate an array.

Iterating Array using 'foreach' loop

We will create an Array with five values, Mohan, John, Paul, Kriti and Salim.

Example :

public class MyApplication
{
    public static void Main(string[] args)
    {
        string[] arr = {"Mohan", "John", "Paul", "Kriti", "Salim"};

        foreach (string str in arr) {
            System.Console.WriteLine(str);
        }
    }    
}

Output :

Mohan
John
Paul
Kriti
Salim

So, in the above code we have created a Array and initialised to the variable arr.

string[] arr = {"Mohan", "John", "Paul", "Kriti", "Salim"};

In the below way the values are positioned in the Array,

So, as we can see the elements are positioned as 0, 1, 2, 3 and 4.

Then we have the foreach loop.

foreach (string str in arr)

That takes the values of the array arr one by one and puts in the variable str.

Let us look at all the iterations of foreach loop.

foreach (string str in arr) {
	System.Console.WriteLine(str);
}

1st Iteration

So, in the first Iteration, the first value i.e. Mohan is taken from the first location and put into the variable str.

And the print statement,

System.Console.WriteLine(str);

Prints the value of str.

Output :

Mohan

2nd Iteration

Then in the second Iteration, the second value i.e. John is taken from the second location and put into the variable str.

And the print statement,

System.Console.WriteLine(str);

Prints the value of str.

Output :

Mohan
John

Similarly, in 5 iterations all the values are printed.

Output :

Mohan
John
Paul
Kriti
Salim

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