![]() ![]() errmsg is an empty matrix if no error occurred. The sprintf function returns an error message string errmsg if an error occurred. = sprintf(format,A.) formats the data in matrix A (and in any additional matrix arguments) under control of the specified format string, and returns it in the MATLAB string variable s. Rounded decimal (UP): 1,234.Sprintf (MATLAB Functions) MATLAB Function Reference The previous code will output the following: Rounded decimal (default): 1,234.457 ("Rounded decimal (UP): " + n.format(amount)) ("Rounded decimal (DOWN): " + n.format(amount)) ("Rounded decimal (default): " + n.format(amount)) NumberFormat n = DecimalFormat.getInstance() Here you can find an overview of all available rounding modes. These rounding mode correspond to the correct decimal precision that you want to obtain. To format a decimal with specific decimal precision we can set a RoundingMode. The previous code will generate the following output: Formatted euro currency: €1,234.46įormatted dollar currency: $1,234.46 Decimal Rounding ("Formatted dollar currency: " + n.format(amount)) NumberFormat n = NumberFormat.getCurrencyInstance(Locale.US) ("Formatted euro currency: " + euroFormat.format(amount)) double amount = 1234.4567 ĭecimalFormat euroFormat = new DecimalFormat("€#,#0.00") To display a currency symbol we can either provide a currency symbol in the pattern, or obtain a localized instance of the NumberFormat. The previous code will generate the following output: Formatted decimal pattern: 1,2345,6789.46įormatted decimal grouping size 5: 1234,56789.46įormatted decimal no grouping: 123456789.46 Displaying and Configuring Currency Symbol ("Formatted decimal no grouping: " + df.format(amount)) ("Formatted decimal grouping size 5: " + df.format(amount)) ("Formatted decimal pattern: " + df.format(amount)) setGroupingUsed(): this option wil enable or disable grouping.ĭecimalFormat df = new DecimalFormat("#,#.#"). ![]() setGroupingSize(): this will set the size of the grouping used for number formatting.There are 2 methods for changing/configuring the grouping. The output from this code will generate: Formatted decimal: 1 2345 6789,46 Configure Number GroupingĪfter the DecimalFormat is created we can override the number grouping from the pattern by calling the grouping methods of the DecimalFormat. DecimalFormatSymbols formatSymbols = new DecimalFormatSymbols(Locale.getDefault()) ĭecimalFormat df = new DecimalFormat("#,#.#", formatSymbols) With the DecimalFormatSymbols#setDecimalSeparator() method we can change the decimal separator and with the DecimalFormatSymbols#setGroupingSeparator() method we can change the grouping separator. We can change the grouping and decimal separators using the DecimalFormatSymbols class. Formatted decimal (ENGLISH locale): 123,456,789.457įormatted decimal (GERMAN locale): 123.456.789,457 How To Change the Decimal and Grouping Separator The second (german) uses a point as grouping separator and a comma as decimal separator. The first (english) uses a comma as grouping separator and a point for decimal separator. You can see that we have used 2 different locales. ("Formatted decimal (GERMAN locale): " + BE_DF.format(amount)) ("Formatted decimal (ENGLISH locale): " + UK_DF.format(amount)) double amount = 123456789.4567 ĭecimalFormat UK_DF = (DecimalFormat)DecimalFormat.getNumberInstance(Locale.ENGLISH) ĭecimalFormat BE_DF = (DecimalFormat)DecimalFormat.getNumberInstance(Locale.GERMAN) You can obtain a DecimalFormat using the factory method DecimalFormat#getNumberInstance(locale). You can however create a DecimalFormat which uses specific Locale settings. The previous DecimalFormat was created in the default Locale of the JVM (computer) where to code is running on. The output printed from this code would be: Formatted decimal: 1,2345.46įormatted decimal: 1,2345.400 Format Decimal Number Using Specific Locale DecimalFormat df = new DecimalFormat("#,#.#") Show always 3 digits after the comma even if there are no other digits to show and use the point as a decimal separator. In the second case we format a decimal using 4 grouping numbers and use the comma as a grouping separator. Show only 2 decimals after the comma and use the point as a decimal separator. In first case we format a decimal using 4 grouping numbers and use the comma as a grouping separator. The DecimalFormat takes a String pattern indicating how to format the decimal. You can format a number using the DecimalFormat#format(number) method. How to display and configure the currency symbol.How to change the default decimal and grouping symbols. ![]()
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