Array Initializers
A 1-dimensional array can be initialized with:
{ comma-separated list of expressions }
/* Offsets to new position of blank on move m are delatR[m] and deltaC[m]. */
int [] deltaR = {0, -1, 1, 0, 0};
int [] deltaC = {0, 0, 0, -1, 1};
A 2-dimensional array can be initialized with:
{ comma-separated list of array-initializers }
Example (solution 3 for setting the initial configuration):
int [][] puz = { {1,2,3,4},