Kodejava

java.util Code Samples

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• How do I shuffle elements of an array?
• How do I generate a random array of numbers?
• How do I create an empty collection object?
• How do I get number of days in a month?
• How do I convert Set into array?
• How do I split a string using Scanner class?
• How do I check if a string is a valid date?
• How do I convert Properties into Map?
• How do I create a repeated sequence of character?
• How do I convert LinkedList to array?
• How do I get currency symbol?
• How do I get the last date of a month?
• How do I sort array values in case insensitive order?

How do I get all available timezones?

package org.kodejava.example.util;

import java.util.TimeZone;

public class TimezonesExample {
    public static void main(String[] args) {
        String[] availableTimezones = TimeZone.getAvailableIDs();

        for (String timezone : availableTimezones) {
            System.out.println("Timezone ID = " + timezone);                        
        }
    }
}

Some examples of the returned timezones ids are:

Timezone ID = Etc/GMT+12
Timezone ID = Etc/GMT+11
Timezone ID = MIT
Timezone ID = Pacific/Apia
Timezone ID = Pacific/Midway
Timezone ID = Pacific/Niue
Timezone ID = Pacific/Pago_Pago
Timezone ID = Pacific/Samoa
Timezone ID = US/Samoa
...
...