Question

a) write an exception class for a time of day not represented in the correct 24-hour format. For example, when a –2, or 24 or 27 are given as times, exceptions should be generated.

b) Write a method to print the time in 24-hour format on screen and throw an exception for the time that is in error. You may take the time as an integer argument.

Answer 1

thanks for the question, here are the two classes - TimeException that extends the exception class and the TimePrinter that represents an object of 24hr formatted time.

The problem does not mention the language in which it needs to be coded, it looked familiar to Java so i coded it in Java.

Let me know in case of any question or changes needed to the code.

===================================================================================

public class TimeException extends Exception {

    public TimeException() {
    }

    public TimeException(String s) {
        super(s);
    }
}

public class TimePrinter {



    private int hour;

    private int minute;

    private int seconds;



    public TimePrinter() {





        hour=0;

        minute=0;

        seconds=0;

    }



    public TimePrinter(int hour, int minute, int seconds) throws TimeException {

        if(0<=hour && hour<24 && 0<=minute && minute<60 && 0<=seconds && seconds<60){

            this.hour = hour;

            this.minute = minute;

            this.seconds = seconds;

        }else{

            throw new TimeException("Invalid Time Entered.");

        }



    }



    @Override

    public String toString() {



        String time="";

        time=hour<10?"0"+hour: String.valueOf(hour);time+=":";

        time+=minute<10?"0"+minute: String.valueOf(minute);time+=":";

        time+=seconds<10?"0"+seconds: String.valueOf(seconds);



        return time;



    }



    public static void main(String[] args) throws TimeException {



        TimePrinter time = new TimePrinter(24,59,59);

        System.out.println(time);



    }

}