Schlagwort: Java

Java Image Scaling Algorithm

The following article explains the different pitfalls for image scaling with java quite well. And it includes some code how to do it right.

http://today.java.net/pub/a/today/2007/04/03/perils-of-image-getscaledinstance.html

If you use the multistep scaling flag of the provided helper method, ensure that your server has enough memory.

WebKit Browser-Engine für für Java und Qt

WebKit for SWT (ver. 0.5) is an embeddable Java™ WebKit browser component developed by Genuitec. This component can be used in the development of a wide range of Java SWT applications that require integration of rich HTML5, CSS3, JavaScript and Flash content and functionality.

Find more information at www.genuitec.com/about/labs.html and www.golem.de/0903/65697.html.

Java: get the time of another time zone

public Date getLocalCurrentDate() {
TimeZone timeZone = TimeZone.getTimeZone(„Greece“);
TimeZone defaultZone = TimeZone.getTimeZone(„GMT“);
Date localDate = new Date();
Date yourDate = new Date();
yourDate.setTime(localDate.getTime() + timeZone.getRawOffset() – defaultZone.getRawOffset() – defaultZone.getDSTSavings());
return yourDate;
}

Java: timezone shift / Zeit in andere Zeitzone umrechnen

To calculate a time to another time zone, just

  1. get a timezone object for the new timezone
  2. register the timezone object to a formatter
  3. recalculate the time with the formatter to a string

code sample:

// formatter
DateFormat df = DateFormat.getDateTimeInstance(DateFormat.FULL, DateFormat.FULL);
// local date
Date now = new Date();
// instanciate timezone
TimeZone timezone = TimeZone.getTimeZone(„Japan“);
// register on formatter
df.setTimeZone(timezone);
// recalculate
System.out.println(„Japan time is:“+df.format(now));