
Originally Posted by
jairoh_
dghan btaw bro pero puro sad pangutana wai saktong tubag.
need calculate interval jud para mahibaw.an pilay bayad.
nangita pa ko bro.. medyo busy man gud.. nangita ko sa Date og Calendar nga mga functions.. wa pa ko naka tiwas og testing.. 
tagaan nya tika kung maka kita na ko..
Code:
import java.util.Calendar;
public class Main {
public static void main(String[] args) {
//Get Instances of Calendar to get System Date
Calendar timeIn = Calendar.getInstance();
Calendar timeOut = Calendar.getInstance();
//Variables for HOUR IN (for manual input of time in)
int hourIn = 8, minIn = 30, secIn = 15;
//Variables for HOUR OUT (for manual input of time out)
int hourOut = 17, minOut = 5, secOut = 35;
//Setting time in
timeIn.set(timeIn.get(Calendar.YEAR), timeIn.get(Calendar.MONTH), timeIn.get(Calendar.DATE), hourIn, minIn, secIn);
//Setting time out
timeOut.set(timeOut.get(Calendar.YEAR), timeOut.get(Calendar.MONTH), timeOut.get(Calendar.DATE), hourOut, minOut, secOut);
//Show the Time IN and TIME OUT
System.out.println("Time In: "+timeIn.getTime());
System.out.println("Time Out: "+timeOut.getTime());
//Experiment as seen in this link -> java - Compare hours and minutes - Stack Overflow
long hours = timeOut.getTimeInMillis()-timeIn.getTimeInMillis();
hours = hours/(1000 * 60 * 60);
System.out.println(hours+" hours of work");
}
}
Output is still in HOURS.. wala pa ko down to SECONDS nga computation, ako pa gisuwayan..