I prefer to use Sun's, since they're the ones who created the language. I don't know how others compare, though.

Not quite. The default access modifier makes things public only to the same package. Any class in another package will not be able to access the methods/members.

^ is a bitwise XOR operator. It can only be used on primitive integer types.

?: is the ternary operator, so named because it takes three parts (see example below). It's shorthand for an if-else...

int row = 0;
int col = 0;
for (row =0; row<theArray.length; row++)
{
for(col = 0; col<theArray[row].length; col++)
{
// no work being done here...
// you should compare...

You're really close again. You've got the assignment backwards for the first value (it should be a = theArray[0];). There is one other problem with your code though: it doesn't scale. What you...