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## org.springframework.format.number
Class NumberFormatter

    java.lang.Object
      org.springframework.format.number.AbstractNumberFormatter
          org.springframework.format.number.NumberFormatter

All Implemented Interfaces:
  Formatter<Number>, Parser<Number>, Printer<Number>

    public class NumberFormatter

extends AbstractNumberFormatter

A general-purpose Number formatter.

Delegates to `NumberFormat.getInstance(Locale)`. Configures BigDecimal parsing so there is no loss in precision. Allows configuration over the decimal number pattern. The `AbstractNumberFormatter.parse(String, Locale)` routine always returns a BigDecimal.

Since:
  3.0
Author:
  Keith Donald, Juergen Hoeller
See Also:
  `setPattern(java.lang.String)`, `AbstractNumberFormatter.setLenient(boolean)`

Constructor Summary
`NumberFormatter()` Create a new NumberFormatter without a pattern.
`NumberFormatter(String pattern)` Create a new NumberFormatter with the specified pattern.

Method Summary
`NumberFormat` | `getNumberFormat(Locale locale)` Obtain a concrete NumberFormat for the specified locale.
`void` | `setPattern(String pattern)` Sets the pattern to use to format number values.

Methods inherited from class org.springframework.format.number.AbstractNumberFormatter
`parse, print, setLenient`

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

Constructor Detail

### NumberFormatter

    public NumberFormatter()

  Create a new NumberFormatter without a pattern.

### NumberFormatter

    public NumberFormatter(String pattern)

  Create a new NumberFormatter with the specified pattern.

  Parameters:
    `pattern` - the format pattern
  See Also:
    `setPattern(java.lang.String)`

Method Detail

### setPattern

    public void setPattern(String pattern)

  Sets the pattern to use to format number values. If not specified, the default DecimalFormat pattern is used.

  See Also:
    `DecimalFormat.applyPattern(String)`

### getNumberFormat

    public NumberFormat getNumberFormat(Locale locale)

  Description copied from class: `AbstractNumberFormatter`
  Obtain a concrete NumberFormat for the specified locale.

  Specified by:
    `getNumberFormat` in class `AbstractNumberFormatter`
  Parameters:
    `locale` - the current locale
  Returns:
    the NumberFormat instance (never `null`)

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