java length

In Java, the length property is used to determine the length or size of an array or a string.

For an array, the length property returns the number of elements in the array. For example:

int[] numbers = {1, 2, 3, 4, 5};
int length = numbers.length;
System.out.println("Length of the array is: " + length);

Output:

Length of the array is: 5

For a string, the length property returns the number of characters in the string. For example:

String message = "Hello, World!";
int length = message.length();
System.out.println("Length of the string is: " + length);

Output:

Length of the string is: 13

Note that the length property is not a method, so it does not require parentheses when used with an array. However, it is a method when used with a string, so it requires parentheses