Stop Watch - Java Pt. 2

/*
* Pupose: to create a class which interacts with the StopWatch GUI
*/

public class Timer {

private long startTime; //stores the starting time
private long endTime; //stores the ending time

//setter method for the starting time
public void setStartTime(long startTime) {

this.startTime = startTime;

}//end setStartTime

//setter method for the stopping time
public void setEndTime(long endTime) {

this.endTime = endTime;

}//end setEndTime

//returns the difference between the starting time and the ending time
public double getElapsedTime(){

double elapsedTime = (double)((int)((endTime - startTime)/100))/10;
return(elapsedTime);

}//end getElapsedTime

}//end Timer