Anonymous Array

[Harikrishna Gorrepati]

Hi,

What is the meaning of Anonymous Array ?

Any of the following is anonymous array (or) something else ?

int[] number= {1,2,3};

int[] nums = new int[] {1,2,3}

[Deepak Bala]

That would be it

[Harikrishna Gorrepati]

Hi Bala,

I am sorry Bala but I am not clear. Could you please differentiate b/w Regular Array & Anonymous Array..

[Deepak Bala]

I got these links through google. Going through them should help you answer the question

http://www.java2s.com/Tutorial/Java/0140__Collections/HowtodefineanArray.htm

http://www.java2s.com/Tutorial/Java/0140__Collections/Anonymousarraysaredeclaredsimilarlytoregulararrays.htm

[Abimaran Kugathasan]

While it was easy to initialize an array when it was declared, you couldn't reinitialize the array later with a comma-delimited list unless you declared another variable to store the new array in. This is where anonymous arrays step in. With an anonymous array, you can reinitialize an array to a new set of values, or pass unnamed arrays into methods when you don't want to define a local variable to store said array.

Anonymous arrays are declared similarly to regular arrays. However, instead of specifying a length within the square brackets, you place a comma-delimited list of values within braces after the brackets, as shown here:

new type[] {comma-delimited-list}

To demonstrate, the following line shows how to call a method and pass to it an anonymous array of String objects:

method(new String[] {"Leonardo", "da", "Vinci"});

[Harikrishna Gorrepati]

Anonymous Array

In java it is perfectly legal to create an anonymous array using the following syntax.

new <type>[] { <list of values>};

Anonymous array example

new int[]{1,2,3};

The above given example creates a nameless array and initializes it. Here, neither name of the array nor the size is specified. It also creates a array which can be assigned to reference or can be passed as a parameter to any method.

Anonymous array program

public class AnonymousArrayExample
{
	public static void main(String args[])
	{
		System.out.println("Length of array is " + findLength(new int[]{1,2,3}));
	}
	
	public static int findLength(int[] array)
	{
		return array.length;
	}
}

The above given program will print "Length of array is 3"

[Abimaran Kugathasan]

So, You got the point!?

[Harikrishna Gorrepati]

Yes Abimaran