Java Date Time - ZonedDateTime.format() Examples

package com.logicbig.example.zoneddatetime;

import java.time.LocalDateTime;
import java.time.ZoneId;
import java.time.ZonedDateTime;
import java.time.format.DateTimeFormatter;

public class FormatExample {

    public static void main(String... args) {
        ZonedDateTime d = ZonedDateTime.of(LocalDateTime.now(), ZoneId.of("America/Los_Angeles"));
        System.out.println(d);

        parse(d, DateTimeFormatter.BASIC_ISO_DATE, "BASIC_ISO_DATE");
        parse(d, DateTimeFormatter.ISO_LOCAL_TIME, "ISO_LOCAL_TIME");
        parse(d, DateTimeFormatter.ISO_OFFSET_DATE_TIME, "ISO_OFFSET_DATE_TIME");
        parse(d, DateTimeFormatter.ISO_OFFSET_DATE, "ISO_OFFSET_DATE");
        parse(d, DateTimeFormatter.ISO_OFFSET_TIME, "ISO_OFFSET_TIME");
        parse(d, DateTimeFormatter.ISO_TIME, "ISO_TIME");
        parse(d, DateTimeFormatter.ISO_OFFSET_TIME, "ISO_OFFSET_TIME");
        parse(d, DateTimeFormatter.ISO_DATE, "ISO_DATE");
        parse(d, DateTimeFormatter.ISO_DATE_TIME, "ISO_DATE_TIME");
        parse(d, DateTimeFormatter.ISO_INSTANT, "ISO_INSTANT");
        parse(d, DateTimeFormatter.ISO_LOCAL_DATE, "ISO_LOCAL_DATE");
        parse(d, DateTimeFormatter.ISO_LOCAL_DATE_TIME, "ISO_LOCAL_DATE_TIME");
        parse(d, DateTimeFormatter.ISO_ORDINAL_DATE, "ISO_ORDINAL_DATE");
        parse(d, DateTimeFormatter.ISO_WEEK_DATE, "ISO_WEEK_DATE");
        parse(d, DateTimeFormatter.ISO_ZONED_DATE_TIME, "ISO_ZONED_DATE_TIME");
    }

    private static void parse(ZonedDateTime d,
                              DateTimeFormatter formatter,
                              String formatterName) {

        String s = d.format(formatter);
        System.out.printf("%20s: %s%n", formatterName, s);
    }
}

package com.logicbig.example.zoneddatetime;

import java.time.LocalDateTime;
import java.time.ZoneId;
import java.time.ZonedDateTime;
import java.time.format.DateTimeFormatter;
import java.time.format.FormatStyle;

public class FormatExample2 {

    public static void main(String... args) {
        ZonedDateTime d = ZonedDateTime.of(LocalDateTime.now(), ZoneId.of("America/Los_Angeles"));
        System.out.println(d);

        System.out.println("---- ofLocalizedDate ----");
        for (FormatStyle formatStyle : FormatStyle.values()) {
            String s = d.format(DateTimeFormatter.ofLocalizedDate(formatStyle));
            System.out.printf("%8s: %s%n", formatStyle.name(), s);
        }

        System.out.println("---- ofLocalizedTime ----");
        for (FormatStyle formatStyle : FormatStyle.values()) {

            String s = d.format(DateTimeFormatter.ofLocalizedTime(formatStyle));
            System.out.printf("%8s: %s%n", formatStyle.name(), s);
        }

        System.out.println("---- ofLocalizedDateTime ----");
        for (FormatStyle formatStyle : FormatStyle.values()) {

            String s = d.format(DateTimeFormatter.ofLocalizedDateTime(formatStyle));
            System.out.printf("%8s: %s%n", formatStyle.name(), s);
        }

        System.out.println("---- ofLocalizedDateTime combinations----");
        for (FormatStyle dateStyle : FormatStyle.values()) {
            for (FormatStyle timeStyle : FormatStyle.values()) {
                String s = d.format(DateTimeFormatter.ofLocalizedDateTime(dateStyle, timeStyle));
                System.out.printf("dateStyle:%-8s| timeStyle:%-8s|  date: %s%n",
                        dateStyle.name(), timeStyle.name(), s);
            }
        }
    }
}

package com.logicbig.example.zoneddatetime;

import java.time.LocalDateTime;
import java.time.ZoneId;
import java.time.ZonedDateTime;
import java.time.format.DateTimeFormatter;

public class FormatExample3 {

    public static void main(String... args) {
        ZonedDateTime d = ZonedDateTime.of(LocalDateTime.now(), ZoneId.of("America/Los_Angeles"));
        System.out.println(d);

        format(d, "yyyy-MM-dd hh:mm a X");
        format(d, "yy-MM-dd hh:mm E a x");
        format(d, "YYYY-MMM-dd hh:mm F a x");
        format(d, "YYYY-MMM-dd hh:mm F a z");
        format(d, "YYYY-MMM-dd hh:mm F a Z");
        format(d, "YYYY-MMM-dd hh:mm F a VV");
        format(d, "YYYY-MMM-dd hh:mm F a O");

    }

    private static void format(ZonedDateTime d, String pattern) {
        String s = d.format(DateTimeFormatter.ofPattern(pattern));
        System.out.printf("%25s => %s%n", pattern, s);
    }
}