Checkout for Promo Codes

Java Multi-Dimensional Arrays

Multi dimensional arrays are arrays of arrays. To declare a multi dimensional array variable, specify each additional index using another set of square brackets. An example is given below for two dimensional array:

int sample[][] = new int[3][3];

We can specify memory for first dimension first, and we can assign memory for second dimension later as given below:

int sample[][] = new int[3][];
int sample[0] = new int[2];
int sample[1] = new int[2];
int sample[2] = new int[2];

The advantage of assigning memory for second dimension is your second dimension can be of any lengths, cannot be fixed length.

Other Java Array Examples

Knowledge Centre
doPost Vs doGet methods
doGet() method is used to get information, while doPost() method is used for posting information. doGet() requests can't send large amount of information and is limited to 240-255 characters. However, doPost()requests passes all of its data, of unlimited length. A doGet() request is appended to the request URL in a query string and this allows the exchange is visible to the client, whereas a doPost() request passes directly over the socket connection as part of its HTTP request body and the exchange are invisible to the client.
Famous Quotations
Good judgment comes from experience, and experience comes from bad judgment.
-- Barry LePatner

About Author

I'm Nataraja Gootooru, programmer by profession and passionate about technologies. All examples given here are as simple as possible to help beginners. The source code is compiled and tested in my dev environment.

If you come across any mistakes or bugs, please email me to [email protected].

Most Visited Pages

Other Interesting Sites

Reference: Java™ Platform Standard Ed. 7 - API Specification | Java™ Platform Standard Ed. 8 - API Specification | Java is registered trademark of Oracle.
Privacy Policy | Copyright © 2020 by Nataraja Gootooru. All Rights Reserved.