Chapter 7, Problem 44RQE

Program Plan Intro

Two-dimensional array:

A two dimensional array is also called as 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 the same place.
• The main advantage is that one-dimensional array can hold only one type of value where as 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.

Example:

//Declaring multi-dimensional array

double testmarks[5][5];

The above statement is used to create a multidimensional array with “5” rows and “5” columns; the first square bracket is used to refer the number of rows and the second square bracket is used to refer the number of columns.

Algorithm to define the two dimensional array:

• Start the program
• Declare the constant size for the rows as “30” and columns as “10” using “const” keyword
• Then, define the two-dimensional array name as “grades[][]” with the integer data type and pass the row value and column value using the variable name