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Cuckoo Clock

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Cuckoo Clock
What will be the output of the following program?
import java.text.*;
import java.util.*;
public class CuckooClock {
    public static void main(String[] args) throws ParseException {
        printCuckoos("02:15", "04:55");
        printCuckoos("15:15", "17:55");
        printCuckoos("06:00", "09:00");
    protected static void printCuckoos(String start, String end) throws ParseException {
        SimpleDateFormat sdf = new SimpleDateFormat("HH:mm");
        Calendar startDate = Calendar.getInstance();
        Calendar endDate = Calendar.getInstance();
        while (startDate.before(endDate)) {
            String currentDate = sdf.format(startDate.getTime());
            if (currentDate.endsWith(":00")) {
            startDate.add(Calendar.MINUTE, 1);
    private static void printCuckoo(int hours) {
        int i = 0;
        while (i < hours % 12) {
            System.out.print("Cuckoo".charAt(i++ % 6));

A. Cuc*Cuck*|Cuck*Cucko*|Cuckoo*CuckooC*CuckooCu*|
B. Cuc*Cuck*|CuckooCuckooCuck*CuckooCuckooCucko*|Cuckoo*CuckooC*CuckooCu*|
C. Cuc*Cuck*|Cuck*Cucko*|Cuckoo*CuckooC*CuckooCu*CuckooCuc*|
D. Some other output or Compilation Error
E. Runtime Error
Topic: Calendar In Java - java.util.Calendar Class

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User comments below. All of them might not be correct.

E.runtime error as NumberFormatException araises.

Posted by Shabaaz Shaikz    2014-04-15 12:56:06

Ans is A. For the first time hours values is 3 so hours % 12 value will become 3 and it print characters at 0, 1 and 2 respectively i.e., Cuck and after that *. Next time hours value is 4 so Cuck will be printed. Next time hours value will be 16 and after that 17 and so on

Posted by Nikhil Sulibhavi    2014-04-15 13:35:52

Congratulations Nikhil Sulibhavi. You are this dose winner. We will send you the link using which you can claim your recharge.

Posted by Merit Campus    2014-04-16 04:17:22

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