C# Loop Through Arrays
Loop Through an Array
You can loop through the array elements with the for loop, and use the
Length
property to specify how many times the loop should run.
The following example outputs all elements in the cars array:
Example
string[] cars = {"Volvo", "BMW", "Ford", "Mazda"};
for (int i = 0; i < cars.Length; i++)
{
Console.WriteLine(cars[i]);
}
The foreach Loop
There is also a foreach loop, which is used exclusively to loop through elements in an array:
Syntax
foreach (type variableName in arrayName)
{
// code block to be executed
}
The following example outputs all elements in the cars
array, using a foreach loop:
Example
string[] cars = {"Volvo", "BMW", "Ford", "Mazda"};
foreach (string i in cars)
{
Console.WriteLine(i);
}
The example above can be read like this: for each
string element (called
i - as in
index) in cars, print out the value of i.
If you compare the for loop and foreach loop, you will see that the foreach method is easier to write, it
does not require a counter (using the Length property), and it is more readable.