Two-dimensional array:

A two dimensional array is also called as a multi-dimensional array; a multidimensional array is that all the identical arrays are put together into a single array.

This is useful for storing same type of multiple sets of data in same place.

The main advantage is that one-dimensional array can hold only one set of value, whereas, two-dimensional array can hold multiple sets of data in the form of rows and columns.

The structure of a multi-dimensional array is lookalike a table (that is combination of rows and columns); it contains same type of columns.

The first size declarator in the two-dimensional array represents row and the second size declarator represents column.

The two dimensional array can have multiple length fields, which holds the number of rows.

Each row in the two dimensional array has a length field which holds the number of columns.

Syntax:

The syntax of two dimensional arrays is as follows:

datatype array_name [number_of_rows][number_of_columns];

From the given syntax, a two-dimensional array named “grades” of type “int” has been created with 30 rows and 10 columns.

Expert Solution & Answer

Check Mark

Want to see the full answer?

Check out a sample textbook solution

See solution

Blurred answer

Chapter 7, Problem 8AW

Chapter 7, Problem 10AW

Students have asked these similar questions

Resolver por superposicion

Describe three (3) Multiplexing techniques common for fiber optic links

Could you help me to know features of the following concepts: - commercial CA - memory integrity - WMI filter

Chapter 7 Solutions

Starting Out with Java: From Control Structures through Objects (7th Edition) (What's New in Computer Science)

Ch. 7.1 - Write statements that create the following arrays:... Ch. 7.1 - Whats wrong with the following array declarations?... Ch. 7.1 - Prob. 7.3CP Ch. 7.1 - Prob. 7.4CP Ch. 7.1 - Prob. 7.5CP Ch. 7.1 - Prob. 7.6CP Ch. 7.1 - Prob. 7.7CP Ch. 7.1 - Prob. 7.8CP Ch. 7.2 - Prob. 7.9CP Ch. 7.2 - Prob. 7.10CP

Ch. 7.2 - A program has the following declaration: double[]... Ch. 7.2 - Look at the following statements: int[] a = { 1,... Ch. 7.3 - Prob. 7.13CP Ch. 7.3 - Write a method named zero, which accepts an int... Ch. 7.6 - Prob. 7.15CP Ch. 7.7 - Recall that we discussed a Rectangle class in... Ch. 7.10 - Prob. 7.17CP Ch. 7.11 - What value in an array does the selection sort... Ch. 7.11 - How many times will the selection sort swap the... Ch. 7.11 - Prob. 7.20CP Ch. 7.11 - Prob. 7.21CP Ch. 7.11 - If a sequential search is performed on an array,... Ch. 7.13 - What import statement must you include in your... Ch. 7.13 - Write a statement that creates an ArrayList object... Ch. 7.13 - Write a statement that creates an ArrayList object... Ch. 7.13 - Prob. 7.26CP Ch. 7.13 - Prob. 7.27CP Ch. 7.13 - Prob. 7.28CP Ch. 7.13 - Prob. 7.29CP Ch. 7.13 - Prob. 7.30CP Ch. 7.13 - Prob. 7.31CP Ch. 7 - In an array declaration, this indicates the number... Ch. 7 - Each element of an array is accessed by a number... Ch. 7 - The first subscript in an array is always. a. 1 b.... Ch. 7 - The last subscript in an array is always. a. 100... Ch. 7 - Array bounds checking happens. a. when the program... Ch. 7 - This array field holds the number of elements that... Ch. 7 - Prob. 7MC Ch. 7 - This search algorithm repeatedly divides the... Ch. 7 - Prob. 9MC Ch. 7 - When initializing a two-dimensional array, you... Ch. 7 - Prob. 11MC Ch. 7 - To delete an item from an ArrayList object, you... Ch. 7 - To determine the number of items stored in an... Ch. 7 - True or False: java does not allow a statement to... Ch. 7 - True or False: An arrays sitze declarator can be a... Ch. 7 - Prob. 16TF Ch. 7 - True or False: The subscript of the last element... Ch. 7 - Prob. 18TF Ch. 7 - True or False: The Java compiler does not display... Ch. 7 - Prob. 20TF Ch. 7 - True or False: The first size declarator in the... Ch. 7 - Prob. 22TF Ch. 7 - Prob. 23TF Ch. 7 - int[] collection = new int[-20]; Ch. 7 - Prob. 2FTE Ch. 7 - Prob. 3FTE Ch. 7 - Prob. 4FTE Ch. 7 - Prob. 5FTE Ch. 7 - The variable names references an integer array... Ch. 7 - The variables numberArray1 and numberArray2... Ch. 7 - Prob. 3AW Ch. 7 - In a program you need to store the populations of... Ch. 7 - In a program you need to store the identification... Ch. 7 - Prob. 6AW Ch. 7 - Prob. 7AW Ch. 7 - Prob. 8AW Ch. 7 - Prob. 9AW Ch. 7 - Prob. 10AW Ch. 7 - Prob. 11AW Ch. 7 - Prob. 1SA Ch. 7 - Prob. 2SA Ch. 7 - Prob. 3SA Ch. 7 - Prob. 4SA Ch. 7 - Prob. 5SA Ch. 7 - Prob. 6SA Ch. 7 - Prob. 7SA Ch. 7 - Prob. 8SA Ch. 7 - Prob. 9SA Ch. 7 - Rainfall Class Write a RainFall class that stores... Ch. 7 - Payroll Class Write a Payroll class that uses the... Ch. 7 - Charge Account Validation Create a class with a... Ch. 7 - Charge Account Modification Modify the charge... Ch. 7 - Prob. 5PC Ch. 7 - Drivers License Exam The local Drivers License... Ch. 7 - Magic 8 Ball Write a program that simulates a... Ch. 7 - Grade Book A teacher has five students who have... Ch. 7 - Grade Book Modification Modify the grade book... Ch. 7 - Average Steps Taken A Personal Fitness Tracker is... Ch. 7 - Array Operations Write a program with an array... Ch. 7 - Prob. 12PC Ch. 7 - Sorted List of 1994 Gas Prices Note: This... Ch. 7 - Name Search If you have downloaded this books... Ch. 7 - Population Data If you have downloaded this books... Ch. 7 - World Series Champions If you have downloaded this... Ch. 7 - 2D Array Operations Write a program that creates a... Ch. 7 - Prob. 18PC Ch. 7 - Trivia Game In this programming challenge, you... Ch. 7 - Prob. 20PC

Knowledge Booster

Background pattern image

Solution Summary: The author explains the syntax of a two-dimensional array.

Want to see the full answer?

Chapter 7 Solutions