In the simple code snippet above, note the two alternative manners in which I set the DecimalFormat object’s properties, once with the set(‘XYZ’,value) function, then using the corresponding Java accessor method setXYZ(value). In this case, we shall use the standard : The solution was to use Matlab’s fully-documented built-in support for using Java objects. I had to find a generic cross-platform way to code this in Matlab in a way that will work for all users out-of-the-box (the application is compiled and distributed as an executable). Moreover, some data values (for example, FOREX exchange rates) need more than two decimal digits. The bank has branches in several countries and people naturally use different Locales on their computer. I have recently completed a consulting work for a bank in Switzerland where these limitations were very important. Customization of the decimal sign and thousands grouping sign is even more difficult. format does not enable customization of the number of decimal digits, and num2str and sprintf‘s ability to do so is limited.The functions always use the same manner to display the number, disregarding the user’s Locale. For example, the number 1234.56 is normally displayed as 1,234.56 or 1’234.56 or 1234,56 depending on your chosen Locale (which is determined by the local language and country). They do not take into account the user’s computer Locale settings.Unfortunately, these built-in functions, useful as they are for simple needs, have several limitations: Matlab has built-in support for this using the fully-documented num2str, sprintf and format functions. We often need to display numbers, in GUI, text files or maybe the console window (Matlab Desktop).
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