Java™ How To Program (Early Objects), Tenth Edition

Arrays of One-Dimensional Arrays

Like one-dimensional arrays, multidimensional arrays can be initialized with array initializers in declarations. A two-dimensional array b with two rows and two columns could be declared and initialized with nested array initializers as follows:

Click here to view code image

int[][] b = {{1, 2}, {3, 4}};

The initial values are grouped by row in braces. So 1 and 2 initialize b[0][0] and b[0][1], respectively, and 3 and 4 initialize b[1][0] and b[1][1], respectively. The compiler counts the number of nested array initializers (represented by sets of braces within the outer braces) to determine the number of rows in array b. The compiler counts the initializer values in the nested array initializer for a row to ...