java - What's the best design pattern for formatting numbers? -

I have to write code that will format the value according to the specified options.

Right now there are several formatting options that can be selected: Number rounding / sorting, prefix (for example $) or postfix (such as%) with specified precision, thousands of groups (comma applied) Numeric abbreviations (KMB) have been added by adding.

For example, number 1857 can be displayed as $ 2 or $ 1.86 or $ 1,867

First of all, I have created this for Decorator Thoughts of using patterns, but I'm not sure because the formats should apply to them a specific order, like I need to implement the IMB conversion: 1857 -> 1.857 k, then it's 1.86. in between.

Do you have any suggestions?

Thanks, Matlee

No, use the java.text.NumberFormat option Which are available to you They have already fully internationalized.