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StopWatch.java
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StopWatch.java
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import java.time.Duration;
import java.time.Instant;
public class StopWatch {
/**
* Stop watch class to find the time elapsed
* @authors: Sira, Omar
* @version 15.0
*/
public Instant startTime, endTime;
public Duration duration;
public boolean isRunning = false;
public void start() {
/**
* Start Method
* To Start the StopWatch/Timer
*/
if (isRunning) {//check if a stop watch is already running.
throw new RuntimeException("Stopwatch is already running.");
}
isRunning = true;
startTime = Instant.now();//setting the startTime to the current time
}
public int stop() {
/**
* Stop Method
* To Stop the StopWatch/Timer
*/
endTime = Instant.now();
if (!isRunning) {
throw new RuntimeException("Stopwatch has not been started yet");
}
isRunning = false;
Duration result = Duration.between(startTime, endTime);
if (duration == null) {
duration = result;
} else {
duration = duration.plus(result);
}
return this.getElapsedTime();
}
public int getElapsedTime() {
/**
* Time Elapsed Method
* getter method to get the time
*/
int timeE=(int) duration.getSeconds();
return timeE;
}
public void reset() {
/**
* reset Method
* To Rest the StopWatch/Timer
*/
if (isRunning) {
stop();
}
duration = null;
}
}