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

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Chapter 7.9, Problem 7.19CP

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 same place.

The main advantage is that one-dimensional array can hold only one type of value where as two dimensional array 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 two-dimensional 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 in the array.

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Define a two-dimensional array of integers named grades. It should have 30 rows and 10 columns.