## org.jfree.data.time
Class Second

    java.lang.Object
      org.jfree.data.time.RegularTimePeriod
          org.jfree.data.time.Second

All Implemented Interfaces:
  java.io.Serializable, java.lang.Comparable, TimePeriod, org.jfree.date.MonthConstants

    public class Second

extends RegularTimePeriod
implements java.io.Serializable

Represents a second in a particular day. This class is immutable, which is a requirement for all `RegularTimePeriod` subclasses.

See Also:
  Serialized Form

Field Summary
`static int` `FIRST_SECOND_IN_MINUTE` Useful constant for the first second in a minute.
`static int` `LAST_SECOND_IN_MINUTE` Useful constant for the last second in a minute.

Fields inherited from class org.jfree.data.time.RegularTimePeriod
`DEFAULT_TIME_ZONE, WORKING_CALENDAR`

Fields inherited from interface org.jfree.date.MonthConstants
`APRIL, AUGUST, DECEMBER, FEBRUARY, JANUARY, JULY, JUNE, MARCH, MAY, NOVEMBER, OCTOBER, SEPTEMBER`

Constructor Summary
`Second()` Constructs a new Second, based on the system date/time.
`Second(java.util.Date time)` Constructs a second.
`Second(java.util.Date time, java.util.TimeZone zone)` Creates a new second based on the supplied time and time zone.
`Second(int second, int minute, int hour, int day, int month, int year)` Creates a new second.
`Second(int second, Minute minute)` Constructs a new Second.

Method Summary
`int` `compareTo(java.lang.Object o1)` Returns an integer indicating the order of this Second object relative to the specified object: negative == before, zero == same, positive == after.
`boolean` `equals(java.lang.Object obj)` Tests the equality of this object against an arbitrary Object.
`long` `getFirstMillisecond()` Returns the first millisecond of the second.
`long` `getFirstMillisecond(java.util.Calendar calendar)` Returns the first millisecond of the minute.
`long` `getLastMillisecond()` Returns the last millisecond of the second.
`long` `getLastMillisecond(java.util.Calendar calendar)` Returns the last millisecond of the second.
`Minute` `getMinute()` Returns the minute.
`int` `getSecond()` Returns the second within the minute.
`long` `getSerialIndex()` Returns a serial index number for the minute.
`int` `hashCode()` Returns a hash code for this object instance.
`RegularTimePeriod` `next()` Returns the second following this one.
`static Second` `parseSecond(java.lang.String s)` Creates a new instance by parsing a string.
`void` `peg(java.util.Calendar calendar)` Recalculates the start date/time and end date/time for this time period relative to the supplied calendar (which incorporates a time zone).
`RegularTimePeriod` `previous()` Returns the second preceding this one.

Methods inherited from class org.jfree.data.time.RegularTimePeriod
`createInstance, downsize, getEnd, getFirstMillisecond, getLastMillisecond, getMiddleMillisecond, getMiddleMillisecond, getMiddleMillisecond, getStart, toString`

Methods inherited from class java.lang.Object
`clone, finalize, getClass, notify, notifyAll, wait, wait, wait`

Field Detail

### FIRST_SECOND_IN_MINUTE

    public static final int FIRST_SECOND_IN_MINUTE

  Useful constant for the first second in a minute.

  See Also:
    Constant Field Values

### LAST_SECOND_IN_MINUTE

    public static final int LAST_SECOND_IN_MINUTE

  Useful constant for the last second in a minute.

  See Also:
    Constant Field Values

Constructor Detail

### Second

    public Second()

  Constructs a new Second, based on the system date/time.

### Second

    public Second(int second,
                  Minute minute)

  Constructs a new Second.

  Parameters:
    `second` - the second (0 to 24*60*60-1).
    `minute` - the minute (`null` not permitted).

### Second

    public Second(int second,
                  int minute,
                  int hour,
                  int day,
                  int month,
                  int year)

  Creates a new second.

  Parameters:
    `second` - the second (0-59).
    `minute` - the minute (0-59).
    `hour` - the hour (0-23).
    `day` - the day (1-31).
    `month` - the month (1-12).
    `year` - the year (1900-9999).

### Second

    public Second(java.util.Date time)

  Constructs a second.

  Parameters:
    `time` - the time.

### Second

    public Second(java.util.Date time,
                  java.util.TimeZone zone)

  Creates a new second based on the supplied time and time zone.

  Parameters:
    `time` - the instant in time.
    `zone` - the time zone.

Method Detail

### getSecond

    public int getSecond()

  Returns the second within the minute.

  Returns:
    The second (0 - 59).

### getMinute

    public Minute getMinute()

  Returns the minute.

  Returns:
    The minute (never `null`).

### getFirstMillisecond

    public long getFirstMillisecond()

  Returns the first millisecond of the second. This will be determined relative to the time zone specified in the constructor, or in the calendar instance passed in the most recent call to the `peg(Calendar)` method.

  Specified by:
    `getFirstMillisecond` in class `RegularTimePeriod`
  Returns:
    The first millisecond of the second.
  See Also:
    `getLastMillisecond()`

### getLastMillisecond

    public long getLastMillisecond()

  Returns the last millisecond of the second. This will be determined relative to the time zone specified in the constructor, or in the calendar instance passed in the most recent call to the `peg(Calendar)` method.

  Specified by:
    `getLastMillisecond` in class `RegularTimePeriod`
  Returns:
    The last millisecond of the second.
  See Also:
    `getFirstMillisecond()`

### peg

    public void peg(java.util.Calendar calendar)

  Recalculates the start date/time and end date/time for this time period relative to the supplied calendar (which incorporates a time zone).

  Specified by:
    `peg` in class `RegularTimePeriod`
  Parameters:
    `calendar` - the calendar (`null` not permitted).
  Since:
    1.0.3

### previous

    public RegularTimePeriod previous()

  Returns the second preceding this one.

  Specified by:
    `previous` in class `RegularTimePeriod`
  Returns:
    The second preceding this one.

### next

    public RegularTimePeriod next()

  Returns the second following this one.

  Specified by:
    `next` in class `RegularTimePeriod`
  Returns:
    The second following this one.

### getSerialIndex

    public long getSerialIndex()

  Returns a serial index number for the minute.

  Specified by:
    `getSerialIndex` in class `RegularTimePeriod`
  Returns:
    The serial index number.

### getFirstMillisecond

    public long getFirstMillisecond(java.util.Calendar calendar)

  Returns the first millisecond of the minute.

  Specified by:
    `getFirstMillisecond` in class `RegularTimePeriod`
  Parameters:
    `calendar` - the calendar/timezone (`null` not permitted).
  Returns:
    The first millisecond.
  Throws:
    `java.lang.NullPointerException` - if `calendar` is `null`.
  See Also:
    `RegularTimePeriod.getLastMillisecond(Calendar)`

### getLastMillisecond

    public long getLastMillisecond(java.util.Calendar calendar)

  Returns the last millisecond of the second.

  Specified by:
    `getLastMillisecond` in class `RegularTimePeriod`
  Parameters:
    `calendar` - the calendar/timezone (`null` not permitted).
  Returns:
    The last millisecond.
  Throws:
    `java.lang.NullPointerException` - if `calendar` is `null`.
  See Also:
    `RegularTimePeriod.getFirstMillisecond(Calendar)`

### equals

    public boolean equals(java.lang.Object obj)

  Tests the equality of this object against an arbitrary Object.

  This method will return true ONLY if the object is a Second object representing the same second as this instance.

  Overrides:
    `equals` in class `java.lang.Object`
  Parameters:
    `obj` - the object to compare (`null` permitted).
  Returns:
    `true` if second and minute of this and the object are the same.

### hashCode

    public int hashCode()

  Returns a hash code for this object instance. The approach described by Joshua Bloch in "Effective Java" has been used here:

  `http://developer.java.sun.com/developer/Books/effectivejava /Chapter3.pdf`

  Overrides:
    `hashCode` in class `java.lang.Object`
  Returns:
    A hash code.

### compareTo

    public int compareTo(java.lang.Object o1)

  Returns an integer indicating the order of this Second object relative to the specified object: negative == before, zero == same, positive == after.

  Specified by:
    `compareTo` in interface `java.lang.Comparable`
  Parameters:
    `o1` - the object to compare.
  Returns:
    negative == before, zero == same, positive == after.

### parseSecond

    public static Second parseSecond(java.lang.String s)

  Creates a new instance by parsing a string. The string is assumed to be in the format "YYYY-MM-DD HH:MM:SS", perhaps with leading or trailing whitespace.

  Parameters:
    `s` - the string to parse.
  Returns:
    The second, or `null` if the string is not parseable.