You’ve got some options.
Either with string concatenation, right in the spot that you want it (mind the number of quotes):
System.out.println("Since there are (" + bluerocks
+ ") there must be less than 12 normal rocks");
…or with symbol substitution, via printf
:
System.out.printf("Since there are (%d) there must be less than 12 normal rocks",
bluerocks);
solved Java, Including int Variables in Print line