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[BAEL-8456] - Moved more articles into 'java-dates' module

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This commit is contained in:
amit2103
2018-08-26 00:49:30 +05:30
parent 3bd1ed4ece
commit c5e1d6f0ef
23 changed files with 10 additions and 11 deletions
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core-java-8/src/main/java/com/baeldung/datetime/modify/DateIncrementer.java
-63
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@@ -1,63 +0,0 @@
package com.baeldung.datetime.modify;
import org.apache.commons.lang3.time.DateUtils;
import org.joda.time.DateTime;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.time.LocalDate;
import java.util.Calendar;
import java.util.Date;
import java.util.logging.Logger;
public class DateIncrementer {
private static final Logger log = Logger.getLogger(DateIncrementer.class.getName());
private static final int INCREMENT_BY_IN_DAYS = 1;
public static String addOneDay(String date) {
return LocalDate
.parse(date)
.plusDays(INCREMENT_BY_IN_DAYS)
.toString();
}
public static String addOneDayJodaTime(String date) {
DateTime dateTime = new DateTime(date);
return dateTime
.plusDays(INCREMENT_BY_IN_DAYS)
.toString("yyyy-MM-dd");
}
public static String addOneDayCalendar(String date) throws ParseException {
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
Calendar c = Calendar.getInstance();
c.setTime(sdf.parse(date));
c.add(Calendar.DATE, 1);
return sdf.format(c.getTime());
}
public static String addOneDayApacheCommons(String date) throws ParseException {
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
Date incrementedDate = DateUtils.addDays(sdf.parse(date), 1);
return sdf.format(incrementedDate);
}
public static void main(String[] args) throws ParseException {
String date = LocalDate
.now()
.toString();
log.info("Current date = " + date);
String incrementedDateJava8 = DateIncrementer.addOneDay(date);
log.info("Date incremented by one day using (Java 8): " + incrementedDateJava8);
String incrementedDateJodaTime = DateIncrementer.addOneDayJodaTime(date);
log.info("Date incremented by one day using (Joda-Time): " + incrementedDateJodaTime);
String incrementedDateCalendar = addOneDayCalendar(date);
log.info("Date incremented by one day using (java.util.Calendar): " + incrementedDateCalendar);
String incrementedDateApacheCommons = addOneDayApacheCommons(date);
log.info("Date incremented by one day using (Apache Commons DateUtils): " + incrementedDateApacheCommons);
}
}
core-java-8/src/main/java/com/baeldung/timezonedisplay/TimezoneDisplay.java
-55
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@@ -1,55 +0,0 @@
package com.baeldung.timezonedisplay;
import java.time.LocalDateTime;
import java.time.ZoneId;
import java.time.ZoneOffset;
import java.util.Comparator;
import java.util.List;
import java.util.Set;
import java.util.stream.Collectors;
public class TimezoneDisplay {
public enum OffsetBase {
GMT, UTC
}
public List<String> getTimeZoneList(OffsetBase base) {
Set<String> availableZoneIds = ZoneId.getAvailableZoneIds();
LocalDateTime now = LocalDateTime.now();
return availableZoneIds
.stream()
.map(ZoneId::of)
.sorted(new ZoneComparator())
.map(id -> String.format("(%s%s) %s", base, getOffset(now, id), id.getId()))
.collect(Collectors.toList());
}
private String getOffset(LocalDateTime dateTime, ZoneId id) {
return dateTime
.atZone(id)
.getOffset()
.getId()
.replace("Z", "+00:00");
}
private class ZoneComparator implements Comparator<ZoneId> {
@Override
public int compare(ZoneId zoneId1, ZoneId zoneId2) {
LocalDateTime now = LocalDateTime.now();
ZoneOffset offset1 = now
.atZone(zoneId1)
.getOffset();
ZoneOffset offset2 = now
.atZone(zoneId2)
.getOffset();
return offset1.compareTo(offset2);
}
}
}
core-java-8/src/main/java/com/baeldung/timezonedisplay/TimezoneDisplayApp.java
-18
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@@ -1,18 +0,0 @@
package com.baeldung.timezonedisplay;
import java.util.List;
public class TimezoneDisplayApp {
public static void main(String... args) {
TimezoneDisplay display = new TimezoneDisplay();
System.out.println("Time zones in UTC:");
List<String> utc = display.getTimeZoneList(TimezoneDisplay.OffsetBase.UTC);
utc.forEach(System.out::println);
System.out.println("Time zones in GMT:");
List<String> gmt = display.getTimeZoneList(TimezoneDisplay.OffsetBase.GMT);
gmt.forEach(System.out::println);
}
}