Java 6 重新定义货币符号(通过CurrencyNameProvider？)

Question

最近，Sun/Oracle 将乌克兰格里夫纳的货币代码更改为不正确的代码，我必须在代码中修复该问题。

我发现 Java 6 应该允许我通过CurrencyNameProvider ( here ) 在 Java 级别执行此操作(详细信息为 see also )。

不幸的是，我不明白哪些语言环境应该返回方法

public Locale[] getAvailableLocales() {}

欢迎任何工作示例!

Answer 1

// Be aware that you need to provide ukrainian names to ALL currency symbols which
// your program uses.

import java.util.Locale;
import java.util.spi.CurrencyNameProvider;

public class UaCurrencyNameProvider extends CurrencyNameProvider {

    private static final Locale UKRAINE = new Locale("uk", "UA");
    private static final String UAH_SYMB = "грн.";
    private Locale[] availableLocales = new Locale[] {UKRAINE};

    @Override
    public Locale[] getAvailableLocales() {
        return availableLocales;
    }

    @Override
    public String getSymbol(String currencyCode, Locale locale) {
        if(currencyCode == null) {
            throw new NullPointerException();
        }
        else if(!UKRAINE.equals(locale)) {
            throw new IllegalArgumentException("Locale not supported");
        }
        else if("UAH".equals(currencyCode)) {
            return UAH_SYMB;
        } else {
            return null;
        }
    }
}