Java Array Length
Description
You can refer to the length of the array - the number of elements it contains - using length, a data member of the array object.
Syntax
Array size, arrayName.length, holds its length.
Example
The following code outputs the length of each
array by using its length property.
public class Main {
public static void main(String args[]) {
int a1[] = new int[10];
int a2[] = {1, 2, 3, 4, 5};
int a3[] = {4, 3, 2, 1};
System.out.println("length of a1 is " + a1.length);
System.out.println("length of a2 is " + a2.length);
System.out.println("length of a3 is " + a3.length);
}// w w w. j a v a 2s . c om
}
This program displays the following output:
