Loops

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John

Loops
1 Answer(s) a year and 3 months ago
Posted in : Java Beginners

ï??Using for loops, Write a program to simulate a clock countdown. The program prompts the user to enter the number of seconds, displays a message at every second, and terminates when the time expires. Use method System.currentTimeMillis() which return the number of milliseconds since the epoch (which is midnight Jan 1st 1970 UTC).

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February 9, 2012 at 4:16 PM

import java.util.*;

class clock
{
    public static void main(String args[])
    {
        Scanner input=new Scanner(System.in);
        System.out.print("Enter number of seconds: ");
        int s = input.nextInt();
        long milliseconds=System.currentTimeMillis();  
        Calendar cal=new GregorianCalendar();
        cal.setTimeInMillis(milliseconds) ;
       int hour = cal.get(Calendar.HOUR);            
       int minutes = cal.get(Calendar.MINUTE);    

        int sec=0;
                   for(sec=0;sec<=s;sec++){

                        System.out.print(hour+":"+ minutes+":"+sec);

                        try{
                            Thread.sleep(1000);
                            System.out.print("\r");

                        }
                        catch(Exception e){}

                    }
                }
         }

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