Loop Through an Array
Loop Through an Array
The length attribute allows you to set the number of times the loop should run as you iterate through the members of the array using the for loop.
Every entry in the cars array is output in the example that follows:
Example
String[] cars = {"Volvo", "BMW", "Ford", "Mazda"};
for (int i = 0; i < cars.length; i++) {
System.out.println(cars[i]);
}
Loop Through an Array with For-Each
Additionally, there is a “for-each” loop that can only be used to iterate through array elements:
Syntax
for (type variable : arrayname) {
...
}
The “for-each” loop in the example below outputs each element in the cars array:
Example
String[] cars = {"Volvo", "BMW", "Ford", "Mazda"};
for (String i : cars) {
System.out.println(i);
}
The previous example might be understood as follows: print the value of i for each String element (named i, as in index) in vehicles.
When comparing the for loop with for-each loop, you will see that the for-each approach is more readable, easier to implement, and does not require a counter (by using the length property).
