Operating on individual time: HH:MM:SS

NewJava :

Given a date and time in string format like "20 10 50", I have successfully converted it into an SDF by referring the internet. Now how do I operate on the same date I just created?

X=3600*HH+60*MM+SS

    public static void main(String[] args) throws ParseException {
        int numberOfTests=3;
        String [] timeStamps=new String[3];
        timeStamps[0]="10 10 10";
        timeStamps[1]="10 10 16";
        timeStamps[2]="10 10 50";

        int [] X=new int[3];
        DateFormat sdf = new SimpleDateFormat("hh mm ss");
        Date t1=sdf.parse(timeStamps[0]);
        Date t2=sdf.parse(timeStamps[1]);
        Date t3=sdf.parse(timeStamps[2]);

        //X=3600*HH+60*MM+SS

This is how far I have reached. I know what I have to do after this, I've got it all sorted, but I am getting stuck here.

I tried to do it using split at first, but it became complex later on, so I stuck to this method.

azro :

If you just want to apply X = 3600*HH + 60*MM + SS you don't need to pass through a date (either Date or LocalTime) just use the String

for (int i = 0; i < timeStamps.length; i++) {
    String[] parts = timeStamps[i].split(" ");
    X[i] = Integer.parseInt(parts[0]) * 3600 + Integer.parseInt(parts[1]) * 60 + Integer.parseInt(parts[2]);
}
System.out.println(Arrays.toString(X)); // [36610, 36616, 36650]

To see an example with a parsing, you'll see that you get the same but more costly with a parsing to LocalTime

DateTimeFormatter fmt = DateTimeFormatter.ofPattern("HH mm ss");
for (int i = 0; i < timeStamps.length; i++) {
    LocalTime time = LocalTime.parse(timeStamps[i], fmt);
    X[i] = time.getHour() * 3600 + time.getMinute() * 60 + time.getSecond();
}
System.out.println(Arrays.toString(X)); // [36610, 36616, 36650]