Multidimensional Arrays

SinusGraph.java

char[][] canvas = new char[24][60];

Arrays can be constructed from arrays.

In the example above, we have an array of arrays of char values.

It is possible to allocate a multidimensional array using one new operator if all dimensions are specified.

It is also possible to construct arrays individually and to end up with an array of arrays with possibly different lengths or even null values.

Graph.java

/** * Clear the canvas, i.e. replace all characters by spaces. */ public void clear() { for (int i = 0; i < rows; ++i) { for (int j = 0; j < columns; ++j) { canvas[i][j] = ' '; } } }

	Arrays can be constructed from arrays.
	In the example above, we have an array of arrays of `char` values.
	It is possible to allocate a multidimensional array using one new operator if all dimensions are specified.
	It is also possible to construct arrays individually and to end up with an array of arrays with possibly different lengths or even null values.