Java – how to add an hour to my time

• Java

I have time in the following format and use this value to set the text of my button

String strDateFormat = "HH:mm: a";
SimpleDateFormat sdf ;
 sdf = new SimpleDateFormat(strDateFormat);
startTime_time_button.setText(sdf.format(date));

Now my question is, can I add one hour to this time format?

Solution

I think the best and easiest way is to use Apache commons Lang:

Date incrementedDate = DateUtils.addHour(startDate,1);

http://commons.apache.org/lang/api-2.6/org/apache/commons/lang/time/DateUtils.html

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