Final answer:
The given code defines a method called nPrint that takes a String message and an integer n. The method uses a while loop to print the message n times. Therefore, the printout of the call nPrint('a', 4) will be aaaa.
Step-by-step explanation:
The given code defines a method called nPrint that takes a String message and an integer n.
The method uses a while loop to print the message n times. Each time the message is printed, the value of n is decremented until it becomes zero.
Therefore, the printout of the call nPrint('a', 4) will be aaaa as the message 'a' will be printed 4 times.