user1772643 user1772643 - 1 year ago 116
Java Question

TimeZone validation in Java

I have a string, I need to check whether it is a standard time zone identifier or not. I am not sure which method I need to use.

String timeZoneToCheck = "UTC";

I would like to check whether it represents a valid time zone or not.

Answer Source

You can get all supported ID using getAvailableIDs()

Then loop the supportedID array and compare with your String.


String[] validIDs = TimeZone.getAvailableIDs();
for (String str : validIDs) {
      if (str != null && str.equals("yourString")) {
        System.out.println("Valid ID");
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