Question

write a java class time that has hours ,minutes and seconds as its members variables .write a main method ancontained in the class that intialisas the two times as t1 and t2 and findes the total time .the output shouldbe displayed as follows :tothours:totmin:totSec

Answer 1

Answer:

public class Time {

int seconds;

int minutes;

int hours;

public Time(int hours, int minutes, int seconds) {

this.hours = hours;

this.minutes = minutes;

this.seconds = seconds;

}

public static void main(String[] args) {

// create objects of Time class

Time start = new Time(8, 12, 15);

Time stop = new Time(12, 34, 55);

Time diff;

// call difference method

diff = difference(start, stop);

System.out.printf("TIME DIFFERENCE: %d:%d:%d - ", start.hours, start.minutes, start.seconds);

System.out.printf("%d:%d:%d ", stop.hours, stop.minutes, stop.seconds);

System.out.printf("= %d:%d:%d\n", diff.hours, diff.minutes, diff.seconds);

}

public static Time difference(Time start, Time stop)

{

Time diff = new Time(0, 0, 0);

// if start second is greater

// convert minute of stop into seconds

// and add seconds to stop second

if(start.seconds > stop.seconds){

--stop.minutes;

stop.seconds += 60;

}

diff.seconds = stop.seconds - start.seconds;

// if start minute is greater

// convert stop hour into minutes

// and add minutes to stop minutes

if(start.minutes > stop.minutes){

--stop.hours;

stop.minutes += 60;

}

diff.minutes = stop.minutes - start.minutes;

diff.hours = stop.hours - start.hours;

// return the difference time

return(diff);

}

}

When you run the program, the output will be:

TIME DIFFERENCE: 12:34:55 - 8:12:15 = 4:22:40

Answer 2

Answer:

Example: Calculate Difference Between Two Time Periods

public class Time { int seconds; int minutes; int hours; public Time(int hours, int minutes, int seconds) { this.hours = hours; this.minutes = minutes; this.seconds = seconds; } public static void main(String[] args) { // create objects of Time class Time start = new Time(8, 12, 15); Time stop = new Time(12, 34, 55); Time diff; // call difference method diff = difference(start, stop); System.out.printf("TIME DIFFERENCE: %d:%d:%d - ", start.hours, start.minutes, start.seconds); System.out.printf("%d:%d:%d ", stop.hours, stop.minutes, stop.seconds); System.out.printf("= %d:%d:%d\n", diff.hours, diff.minutes, diff.seconds); } public static Time difference(Time start, Time stop) { Time diff = new Time(0, 0, 0); // if start second is greater // convert minute of stop into seconds // and add seconds to stop second if(start.seconds > stop.seconds){ --stop.minutes; stop.seconds += 60; } diff.seconds = stop.seconds - start.seconds; // if start minute is greater // convert stop hour into minutes // and add minutes to stop minutes if(start.minutes > stop.minutes){ --stop.hours; stop.minutes += 60; } diff.minutes = stop.minutes - start.minutes; diff.hours = stop.hours - start.hours; // return the difference time return(diff); } }

When you run the program, the output will be:

TIME DIFFERENCE: 12:34:55 - 8:12:15 = 4:22:40

In the above program, we've created a class named Time with three member variables: hours, minutes and seconds. As name suggests, they store hours, minutes and seconds of a given time respectively

Explanation:

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