Java Illuminated, 5th Edition

9.4 Two-Dimensional Arrays Passed to and Returned from Methods

Writing methods that take two-dimensional arrays as parameters and/or return two-dimensional arrays is similar to working with single-dimensional arrays.

The syntax for a method that accepts a two-dimensional array as a parameter is the following:

returnType methodName( arrayType [ ][ ] arrayParameterName )

The syntax for a method that returns a two-dimensional array is the following:

returnArrayType [ ][ ] methodName( parameterList )

The caller of the method passes the argument list and assigns the return value to a reference to a two-dimensional array of the appropriate data type.

Combining both possibilities, the syntax for a method that accepts a two-dimensional array as a ...