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.