currency

问题 If you have the country code US , FR (ISO-3166-1 alpha-2 country code), how do you get the Locale code ( Locale.US , Locale.FRANCE ) to do something like this: System.out.println(DecimalFormat.getCurrencyInstance(Locale.US).format(12.34)); System.out.println(DecimalFormat.getCurrencyInstance(Locale.FRANCE).format(12.34)); $12.34 12,34 € 回答1: You can't, because a Locale is used to hold a language, not a country. It can hold a language for a specific country, and for a specific variant in this

问题 To display a currency we do: ToString("0.##") For value 5.00 the output is: 5 For value 5.98 the output is: 5.98 For value 5.90 the output is: 5.9 I need the third case to come out with 2 decimal points, eg: 5.90 How can I do this without it affecting the other results? 回答1: I know this doesn't give you a format that fixes the problem, but it's a simple solution to work around it. (5.00).ToString("0.00").Replace(".00",""); // returns 5 (5.90).ToString("0.00").Replace(".00", ""); // returns 5

问题 I'm writing a Java program that mines currency exchange data. The data can have multiple digits in the decimal such as "0.973047". After some research I was able to find out BigDecimal is the right data type for Java, but which data type should I be using for PostgreSQL? 回答1: NUMERIC / DECIMAL As Joachim Isaksson said, you want to use NUMERIC/DECIMAL type, as an arbitrary precision type. Two important points about NUMERIC / DECIMAL : Read the doc carefully to learn that you should specify the

问题 I am learning and using the pandas and python. Today, I am trying to make a fx rate table, but I got a trouble with getting the pricess of 'USDJPY'. When I get a prices of 'EUR/USD', i code like this. eur = web.DataReader('EURUSD=X','yahoo')['Adj Close'] it works. But when I wrote jpy = web.DataReader('USDJPY=X','yahoo')['Adj Close'] the error message comes like this: --------------------------------------------------------------------------- IOError Traceback (most recent call last) in () --

问题 How do i get the currency pattern for a specific culture? For Example: Instead of using: string.Format("{0:c}", 345.10) I want to use this: string.Format("#.##0,00 €;-#.##0,00 €", 345.10); But how do i get the pattern string (like "#.##0,00 €;-#.##0,00 €") for each culture my application needs? I cant use the "{0:c}" pattern because if the user switches the language the currency should be the same. 回答1: A CultureInfo contains a NumberFormatInfo and this class describes (among other things)

问题 How do i get the currency pattern for a specific culture? For Example: Instead of using: string.Format("{0:c}", 345.10) I want to use this: string.Format("#.##0,00 €;-#.##0,00 €", 345.10); But how do i get the pattern string (like "#.##0,00 €;-#.##0,00 €") for each culture my application needs? I cant use the "{0:c}" pattern because if the user switches the language the currency should be the same. 回答1: A CultureInfo contains a NumberFormatInfo and this class describes (among other things)

问题 How do i get the currency pattern for a specific culture? For Example: Instead of using: string.Format("{0:c}", 345.10) I want to use this: string.Format("#.##0,00 €;-#.##0,00 €", 345.10); But how do i get the pattern string (like "#.##0,00 €;-#.##0,00 €") for each culture my application needs? I cant use the "{0:c}" pattern because if the user switches the language the currency should be the same. 回答1: A CultureInfo contains a NumberFormatInfo and this class describes (among other things)

问题 I have been working quite a few hours on this one but I can't figure out this one. I am willing to have the user select a corresponding currency for the price he is filling in the form. I am using the Money Gem (https://github.com/RubyMoney/money ). All values are set correctly BUT not the currency that only sets to its default value (USD) whatever is sent through the form. I suppose this is my lack of experience with the Money gem. In My Model: require 'money' composed_of :price_per_unit,

问题 In Java, when we program money it is recommended to use the class BigDecimal for money. Is there something similar in python? I would like something object-oriented that can have a currency and an exchange rate, has that been done? I store money as integers of cents (I think) and multiply with 100 to get dollars but I also have foreign currency so listing listing ordered by price becomes inconvenient when articles have different currencies and even are listed as price per hour or per item. So

问题 In Python, how can I convert currency code to its sign? For example, USD would be converted to $ , and JPY would be converted to ¥ . If there isn't a generic way to do this, is there any simple dictionary of these on the Web? Thanks. 回答1: Using the locale module: import locale locales=('en_AU.utf8', 'en_BW.utf8', 'en_CA.utf8', 'en_DK.utf8', 'en_GB.utf8', 'en_HK.utf8', 'en_IE.utf8', 'en_IN', 'en_NG', 'en_PH.utf8', 'en_US.utf8', 'en_ZA.utf8', 'en_ZW.utf8', 'ja_JP.utf8') for l in locales: locale