How to set thousands separator in Java

Question

How to set thousands separator in Java  I have String representation of a BigDecimal that I want to format with a thousands separator and return as String

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DecimalFormatSymbols formatSymbols   new DecimalFormatSymbols    formatSymbols setDecimalSeparator       formatSymbols setGroupingSeparator        String strange        0       DecimalFormat df   new DecimalFormat strange  formatSymbols   df setGroupingSize 4    String out   df format new BigDecimal 300000  doubleValue      System out println out

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NumberFormat nf   DecimalFormat getInstance myLocale   DecimalFormatSymbols customSymbol   new DecimalFormatSymbols    customSymbol setDecimalSeparator       customSymbol setGroupingSeparator         DecimalFormat nf  setDecimalFormatSymbols customSymbol   nf setGroupingUsed true

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If you are using thousand separator for Integer data type use 1    For integer data Type   String format    d n   58625  and output will be 58 625   For Floating Point data Type String format     2f  58625 21  and output will be 58 625 21

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The accepted answer has to be really altered otherwise not working  The getDecimalFormatSymbols makes a defensive copy  Thus   DecimalFormat formatter    DecimalFormat  NumberFormat getInstance Locale US   DecimalFormatSymbols symbols   formatter getDecimalFormatSymbols     symbols setGroupingSeparator       formatter setDecimalFormatSymbols symbols   System out println formatter format bd longValue        The new line is this one  formatter setDecimalFormatSymbols symbols

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try this code to format as used in Brazil       DecimalFormat df   new DecimalFormat             0 00          new DecimalFormatSymbols new Locale  pt    BR           BigDecimal value   new BigDecimal 123456 00        System out println df format value floatValue              results   123 456 00

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BigDecimal bd   new BigDecimal 300000    NumberFormat formatter   NumberFormat getInstance new Locale  en US      System out println formatter format bd longValue        EDIT  To get custom grouping separator such as space  do this   DecimalFormatSymbols symbols   DecimalFormatSymbols getInstance    symbols setGroupingSeparator        DecimalFormat formatter   new DecimalFormat               symbols   System out println formatter format bd longValue

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You can use format function with       int no   124750  String str   String format    d   no      str   124 750       includes locale-specific grouping characters   docs

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As mentioned above  the following link gives you the specific country code to allow Java to localize the number  Every country has its own style    In the link above you will find the country code which should be placed in here       new Locale  lt COUNTRY CODE HERE gt       Switzerland for example formats the numbers as follows   1000 00 --  1 000 00  country code  To achieve this  following codes works for me   NumberFormat nf   NumberFormat getNumberInstance new Locale  de   CH     nf setMaximumFractionDigits 2   DecimalFormat df    DecimalFormat nf  System out println df format 1000 00      Result is as expected   1 000 00

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For decimals     DecimalFormatSymbols symbols   new DecimalFormatSymbols    symbols setGroupingSeparator       DecimalFormat dfDecimal   new DecimalFormat             0 00       dfDecimal setDecimalFormatSymbols symbols   dfDecimal setGroupingSize 3   dfDecimal setGroupingUsed true   System out println dfDecimal format number

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public String formatStr float val     return String format Locale CANADA      2f   val      formatStr 2524 2     2 254 20

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This should work  untested  based on JavaDoc    DecimalFormat formatter    DecimalFormat  NumberFormat getInstance Locale US   DecimalFormatSymbols symbols   formatter getDecimalFormatSymbols     symbols setGroupingSeparator       formatter setDecimalFormatSymbols symbols   System out println formatter format bd longValue        According to the JavaDoc  the cast in the first line should be save for most locales

[java] How to set thousands separator in Java?

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