Get the current time

Question

Hi I was wondering how I can get the current time and use is to compare it e.g. in a IF sentence.

Answer 1

Hi I was wondering how I can get the current time and
use is to compare it e.g. in a IF sentence.This might help. I'm not exactly sure what you are asking for but I use this type of code to compare the current time to my start time in my program, specifically for my loggerformatter. The output shows the seconds and the remainder in milliseconds. The efficiency is probably suspect, but it might give you some ideas... Joel
import java.util.Date;
import java.text.NumberFormat;
import java.util.GregorianCalendar;
import java.text.SimpleDateFormat;
class TimeDiff {
    private static NumberFormat nf08 = NumberFormat.getInstance();
    private static GregorianCalendar calStart = new GregorianCalendar();
    private static GregorianCalendar calEnd  = new GregorianCalendar();
     *  Constructor
    public TimeDiff() {
        calStart.setTimeInMillis(System.currentTimeMillis());
     * Calculate the elapsed time in seconds
    private static long calcSsElapsed(GregorianCalendar calBegin, GregorianCalendar calEnd) {
        return((calEnd.getTime().getTime() - calBegin.getTime().getTime()) / 1000);
     * Calculate the elasped time milliseconds
    private static long calcMsElapsed(GregorianCalendar calBegin, GregorianCalendar calEnd) {
        return((calEnd.getTime().getTime() - calBegin.getTime().getTime()) % 1000);
    public static void main(String[] args) {
        try {
            TimeDiff td = new TimeDiff();
            Thread.sleep(5100);
            calEnd.setTimeInMillis(System.currentTimeMillis());
            System.out.println("Seconds="+calcSsElapsed(calStart, calEnd));
            System.out.println("Milliseconds="+calcMsElapsed(calStart, calEnd));
        catch (Exception e) {
            System.out.println("something went terribly, terribly wrong");
}