java.lang.Object
- org.apache.poi.ss.format.CellFormat

```
public class CellFormat
extends java.lang.Object
```
Format a value according to the standard Excel behavior. This "standard" is not explicitly documented by Microsoft, so the behavior is determined by experimentation; see the tests.
An Excel format has up to four parts, separated by semicolons. Each part specifies what to do with particular kinds of values, depending on the number of parts given:

One part (example: [Green]#.##)

If the value is a number, display according to this one part (example: green text, with up to two decimal points). If the value is text, display it as is.

Two parts (example: [Green]#.##;[Red]#.##)

If the value is a positive number or zero, display according to the first part (example: green text, with up to two decimal points); if it is a negative number, display according to the second part (example: red text, with up to two decimal points). If the value is text, display it as is.

Three parts (example: [Green]#.##;[Black]#.##;[Red]#.##)

If the value is a positive number, display according to the first part (example: green text, with up to two decimal points); if it is zero, display according to the second part (example: black text, with up to two decimal points); if it is a negative number, display according to the third part (example: red text, with up to two decimal points). If the value is text, display it as is.

Four parts (example: [Green]#.##;[Black]#.##;[Red]#.##;[@])

If the value is a positive number, display according to the first part (example: green text, with up to two decimal points); if it is zero, display according to the second part (example: black text, with up to two decimal points); if it is a negative number, display according to the third part (example: red text, with up to two decimal points). If the value is text, display according to the fourth part (example: text in the cell's usual color, with the text value surround by brackets).

A given format part may specify a given Locale, by including something like [$$-409] or [$£-809] or [$-40C]. These are (currently) largely ignored. You can use DateFormatConverter to look these up into Java Locales if desired.
In addition to these, there is a general format that is used when no format is specified. TODO Merge this with DataFormatter so we only have one set of code for formatting numbers. TODO Re-use parts of this logic with ConditionalFormatting / ConditionalFormattingRule for reporting stylings which do/don't apply TODO Support the full set of modifiers, including alternate calendars and native character numbers, as documented at https://help.libreoffice.org/Common/Number_Format_Codes

Method Summary

All Methods Static Methods Instance Methods Concrete Methods Deprecated Methods
Modifier and Type	Method	Description
`CellFormatResult`	`apply(java.lang.Object value)`	Returns the result of applying the format to the given value.
`CellFormatResult`	`apply(javax.swing.JLabel label, java.lang.Object value)`	Uses the result of applying this format to the value, setting the text and color of a label before returning the result.
`CellFormatResult`	`apply(javax.swing.JLabel label, Cell c)`	Fetches the appropriate value from the cell, and uses the result, setting the text and color of a label before returning the result.
`CellFormatResult`	`apply(Cell c)`	Fetches the appropriate value from the cell, and returns the result of applying it to the appropriate format.
`boolean`	`equals(java.lang.Object obj)`	Returns `true` if the other object is a `CellFormat` object with the same format.
`static CellFormat`	`getInstance(java.lang.String format)`	Returns a `CellFormat` that applies the given format.
`static CellFormat`	`getInstance(java.util.Locale locale, java.lang.String format)`	Returns a `CellFormat` that applies the given format.
`int`	`hashCode()`	Returns a hash code for the format.
`static CellType`	`ultimateType(Cell cell)`	Returns the ultimate cell type, following the results of formulas.
`static CellType`	`ultimateTypeEnum(Cell cell)`	Deprecated. use `ultimateType` instead

Methods inherited from class java.lang.Object
getClass, notify, notifyAll, toString, wait, wait, wait

- Method Detail
  - getInstance
```
public static CellFormat getInstance(java.lang.String format)
```
    Returns a CellFormat that applies the given format. Two calls with the same format may or may not return the same object.
    
    Parameters:
    
    format - The format.
    
    Returns:
    
    A CellFormat that applies the given format.
  - getInstance
```
public static CellFormat getInstance(java.util.Locale locale,
                                     java.lang.String format)
```
    Returns a CellFormat that applies the given format. Two calls with the same format may or may not return the same object.
    
    Parameters:
    
    locale - The locale.
    
    format - The format.
    
    Returns:
    
    A CellFormat that applies the given format.
  - apply
```
public CellFormatResult apply(java.lang.Object value)
```
    Returns the result of applying the format to the given value. If the value is a number (a type of Number object), the correct number format type is chosen; otherwise it is considered a text object.
    
    Parameters:
    
    value - The value
    
    Returns:
    
    The result, in a CellFormatResult.
  - apply
```
public CellFormatResult apply(Cell c)
```
    Fetches the appropriate value from the cell, and returns the result of applying it to the appropriate format. For formula cells, the computed value is what is used.
    
    Parameters:
    
    c - The cell.
    
    Returns:
    
    The result, in a CellFormatResult.
  - apply
```
public CellFormatResult apply(javax.swing.JLabel label,
                              java.lang.Object value)
```
    Uses the result of applying this format to the value, setting the text and color of a label before returning the result.
    
    Parameters:
    
    label - The label to apply to.
    
    value - The value to process.
    
    Returns:
    
    The result, in a CellFormatResult.
  - apply
```
public CellFormatResult apply(javax.swing.JLabel label,
                              Cell c)
```
    Fetches the appropriate value from the cell, and uses the result, setting the text and color of a label before returning the result.
    
    Parameters:
    
    label - The label to apply to.
    
    c - The cell.
    
    Returns:
    
    The result, in a CellFormatResult.
  - ultimateType
```
public static CellType ultimateType(Cell cell)
```
    Returns the ultimate cell type, following the results of formulas. If the cell is a CellType.FORMULA, this returns the result of Cell.getCachedFormulaResultType(). Otherwise this returns the result of Cell.getCellType().
    
    Parameters:
    
    cell - The cell.
    
    Returns:
    
    The ultimate type of this cell.
  - ultimateTypeEnum
```
@Deprecated
@Removal(version="4.2")
public static CellType ultimateTypeEnum(Cell cell)
```
    Deprecated.
    use ultimateType instead
    
    Returns the ultimate cell type, following the results of formulas. If the cell is a CellType.FORMULA, this returns the result of Cell.getCachedFormulaResultType(). Otherwise this returns the result of Cell.getCellType().
    
    Parameters:
    
    cell - The cell.
    
    Returns:
    
    The ultimate type of this cell.
    
    Since:
    
    POI 3.15 beta 3
  - equals
```
public boolean equals(java.lang.Object obj)
```
    Returns true if the other object is a CellFormat object with the same format.
    
    Overrides:
    
    equals in class java.lang.Object
    
    Parameters:
    
    obj - The other object.
    
    Returns:
    
    true if the two objects are equal.
  - hashCode
```
public int hashCode()
```
    Returns a hash code for the format.
    
    Overrides:
    
    hashCode in class java.lang.Object
    
    Returns:
    
    A hash code for the format.

Class CellFormat

Method Summary

Methods inherited from class java.lang.Object

Method Detail

getInstance

getInstance

apply

apply

apply

apply

ultimateType

ultimateTypeEnum

equals

hashCode