Filetime (Keikai Spreadsheet Build 6.1.0.1 API)

java.lang.Object
- org.apache.poi.hpsf.Filetime

```
@Internal
public class Filetime
extends Object
```
The Windows FILETIME structure holds a date and time associated with a file. The structure identifies a 64-bit integer specifying the number of 100-nanosecond intervals which have passed since January 1, 1601, Coordinated Universal Time (UTC).

Constructor Summary

Constructors
Constructor Description

Filetime()

Filetime(Date date)

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`static long`	`dateToFileTime(Date date)`	Converts a `Date` into a filetime.
`static Date`	`filetimeToDate(long filetime)`	Converts a Windows FILETIME (in UTC) into a `Date` (in UTC).
`Date`	`getJavaValue()`
`static boolean`	`isUndefined(Date date)`	Return `true` if the date is undefined
`void`	`read(LittleEndianByteArrayInputStream lei)`
`byte[]`	`toByteArray()`
`int`	`write(OutputStream out)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - Filetime
```
public Filetime()
```
  - Filetime
```
public Filetime(Date date)
```
- Method Detail
  - read
```
public void read(LittleEndianByteArrayInputStream lei)
```
  - toByteArray
```
public byte[] toByteArray()
```
  - write
```
public int write(OutputStream out)
          throws IOException
```
    Throws:
    
    IOException
  - getJavaValue
```
public Date getJavaValue()
```
  - filetimeToDate
```
public static Date filetimeToDate(long filetime)
```
    Converts a Windows FILETIME (in UTC) into a Date (in UTC).
    
    Parameters:
    
    filetime - The filetime to convert.
    
    Returns:
    
    The Windows FILETIME as a Date.
  - dateToFileTime
```
public static long dateToFileTime(Date date)
```
    Converts a Date into a filetime.
    
    Parameters:
    
    date - The date to be converted
    
    Returns:
    
    The filetime
    
    See Also:
    
    filetimeToDate(long)
  - isUndefined
```
public static boolean isUndefined(Date date)
```
    Return true if the date is undefined
    
    Parameters:
    
    date - the date
    
    Returns:
    
    true if the date is undefined