Java Illuminated by Julie Anderson & Hervé J. Franceschi

Author:Julie Anderson & Hervé J. Franceschi [Anderson, Julie]
Language: eng
Format: epub
Publisher: Jones & Bartlett Learning
Published: 2014-10-05T18:30:00+00:00

The list contains a number of sublists, separated by commas. The number of these sublists determines the number of rows in the array. For each row, the number of values in the corresponding sublist determines the number of columns in the row. Thus, Java allows a two-dimensional array to have a different number of columns in each row. For example, in our Auto array, each country (row) could have a different number of employees (columns) with company cars.

Indeed, a two-dimensional array is an array of arrays. The first dimension of a two-dimensional array consists of an array of array references, with each reference pointing to a single-dimensional array. Thus, a two-dimensional array is composed of an array of rows, where each row is a single-dimensional array. Therefore, each row can have a different number of elements, or columns.

For example, this statement declares and instantiates a two-dimensional array of integers:

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