On the post Basic Java Currency converter using Yahoo Finance API I showed data currency exchange rate information can be easily acquired. Getting a single exchange rate between two currencies is a nice thing, but it can be inefficient, if one would like to get several currencies exchange rate information. Since the Acquiring the information requires a request to Yahoo forex, making multiple requests in order to get several exchange rates is an expensive operation. Luckily, Yahoo API allows getting more than one exchange rate information on a single request. The structure for getting more than forex currency information at data single request is pretty data forward and can be easily deduced from the basic request I was showing on the previous post:. For example, api 3 currencies information on a single request for the following currency pairs: Extending our YahooCurrencyConverter from the previous postto get currency information of more than one currency pair, is quite easy and therefore, I will jump directly to the main goal of this post: Getting currencies matrix information. Currency matrix information is a neat way of showing currency exchange rates of several currencies on a single table. Currency matrix can be illustrated easily api example. Currency matrix for the currencies: ILS, USD, GBP looks like:. Note, that the code in this post relies on the code from the post: Basic Api Currency converter using Yahoo Finance API. Now, yahoo will add a new yahoo class that will do the currency matrix calculations. Note that the currency matrix calculations relays on the new convert method added to CurrencyConverter interface:. The method getConversionMatrix in the abstract class BaseCurrencyConverter builds currency matrix information for any class implementing the convert method. It does not care about how the convert method is implemented. The method receives a list of currencies for which we would like to build the matrix. From the list data builds all combinations between any yahoo currencies. After building list of combinations, the abstract convert method is activated, to get the actual currency information. The final part of the class arranges the results in a 2 dimensional array, for easier data access. As stated for the previous post, this class is making use of the Apache open source project: You will need to put in your project the proper jar files for this class to work properly. We are also getting rates for currencies from Y! Just wanted to find out if you happen to know whether it is possible to get currency rates for different currencies in the past. We are having currency values missing for historical dates and I am checking to see if there is a way to retrieve them from Yahoo. Any help from you is appreciated, thanks. As far as I remember, there is no way of taking past data. There are services that can give back past data, but they cost money Please provide the link to download the jar file Thank you. Hi Sai, sorry for not putting a jar file for this code. As I was telling you on the other post, it is quite easy to copy and paste this code to your Java IDE and things should run and work yahoo. Hi Bashan, Please provide forex link of required jars for this to run. I am forex problem only with the jars. So help me out. Hi Yashwanth, Please look the the previous comment, about the JARs. Hi Bashan, Sorry my mistake, but thanks for the url. Its working for me Really appreciate ur help and response. Bashan, I need a help on the code written above. Will this support any number of currencies? As I am trying for more than 13 currencies api part of my work,its failing Below are the forex I have been trying for. So please help me out. So can u please help me out. Api you in advance. Hi Yashwanth, Did you try adding a currency other than: If forex currency works OK Data would guess "VEF" currency is simply not supported or the currency code is wrong. If forex another code also doesn't work, so there is probably a limit on the yahoo of currencies and the only way to go around it, is to make several forex to get all the data. Is there anyway to get all data from on currency pair that ranges from now to the last two or three years? Hi Bandito, I do not think there is a way of getting History from this API. I think that for getting historical currency services you have to pay to some company that collects the info and charge for it, but I am not sure. I am also looking for historical Fx data for batch download. See the link below for free sources for yahoo downloads to cvs. The link below data a pretty comprehensive list for single currency pair download. Yahoo development and photography related issues. Monday, March 23, Java Currency Converter using Yahoo Finance API — Currency Matrix. Data structure api getting more than one currency information at a single request is pretty straight forward and can be easily deduced from the basic request I was showing on the previous post: USD, ILS USD, JPY USD, GBP Looks like: ILS, USD, GBP looks like: ILS USD GBP ILS 0. Add a new class named: This class represents the relation between 2 currencies. Add a new method to the interface CurrencyConverter. This method defines a way of getting exchange rate information for several currencies. This is the code of CurrencyPair class: Note that the currency matrix calculations relays on the new convert method added to CurrencyConverter interface: Finally, after laying the structure, we can go back to the main implementing class: We data have to implement the new added convert method, to allow getting currency api for several currencies at a single request. In addition the class contains a small yahoo program showing how the currency matrix can be used: USD EUR GBP JPY CHF CAD AUD MXN ILS USD 0. This information may be useful to currency traders or applications that need to show the latest exchange rate between currencies. Posted api Guy Bashan at 8: Share to Yahoo Share to Facebook Share to Pinterest. Thanks for your time putting this together', 'timestamp': So help me out', 'timestamp': Anonymous March 2, at 8: Guy Bashan March 3, at Anonymous Forex 8, at 3: Guy Bashan March 8, at 4: Chaitanya November 22, at Guy Bashan November 26, at Anonymous June 29, at 9: Guy Bashan October 30, at Yashwanth November 6, at 7: Guy Bashan November 8, at 6: Api November 18, at Yashwanth November 22, at 9: Guy Bashan November 22, at 4: Guy Bashan February 4, data Rich Mack February 28, at 5: Newer Post Older Post Home. Basic Java Currency converter using Yahoo Finance Generating a sequence of numbers using plain SQL q Sending SMS alerts with Log4j using ipipi. About Me Guy Bashan. Popular Data Java Currency Converter using Yahoo Finance API — Currency Matrix. Converting ResultSet to Excel table in Java using Apache POI. You can make a great reporting system with impressive UI, but there will always be someone that will api you: Can you export to excel? Get real IP from request in Java. Simply getting the IP of the remote client in Java is an easy task. Getting Time Zone list in Java. In this post I wrote about how to get countries list in Java. I also wrote another post of how to get languages list in Java. Validating empty text field using JSF. JSF has a pretty comprehensive support for validations, but it is lack of a validation for an empty field. Hibernate Bi-Directional One to One mapping using Annotations. It took me more than few minutes to find how to do one to one mapping using Hibernate Annotations, so I though Data will share it. Configure Tomcat to accept HTTP PUT command. Tomcat by default is not enabled for HTTP PUT command. Api, it can be easily configure to support it. First, in order to allow Tomcat yahoo acc One of the ways of increasing server performance, is by reducing the amount of data passed on the network. This can be done by using compres Yahoo Finance is offering a very nice currency converter. It can show conversion rates for many currencies and even show forex currenc There are times we have a class, we would like to fill with data according the data returned from a query. The class is a simple POJO forex no
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