How to get Time Slot interval of 1Hour based two times android

问题

How to get Time Slot interval of 1Hour based two times androidI want to store time slot in the arraylist. i have start time and end time. based on start time it should create time slot. For example if start time is 09:00AM and end time is 21:00PM then it should add into arraylist like below

09:00AM 10:00AM 11:00AM 12:00PM 13:00PM 14:00PM ..... so on 21:00PM

回答1:

You can do this way :

String firstDate = "26/02/2019";
String firstTime = "00:00 AM";
String secondDate = "26/02/2019";
String secondTime = "12:00 PM";

String format = "dd/MM/yyyy hh:mm a";

SimpleDateFormat sdf = new SimpleDateFormat(format);

  Date dateObj1 = sdf.parse(firstDate + " " + firstTime);
 Date dateObj2 = sdf.parse(secondDate + " " + secondTime);
 System.out.println("Date Start: "+dateObj1);
 System.out.println("Date End: "+dateObj2);

long dif = dateObj1.getTime(); 
while (dif < dateObj2.getTime()) {
 Date slot = new Date(dif);
System.out.println("Hour Slot --->" + slot);
  dif += 3600000;
 }

来源：https://stackoverflow.com/questions/59597354/how-to-get-time-slot-interval-of-1hour-based-two-times-android