In order to download quotes from yahoo finance it is enough to do so on Python. And how to do the same on Java?

from pandas_datareader import data a = 'AAPL' aapl = data.DataReader(a, 'yahoo', '1990-01-01') aapl.to_csv('C:/aapl_data.csv')

  • Take advantage of their api - GenCloud
  • As I understand it, pandas_datareader is a kind of library for working with data from Google, Google, etc. In order for the code to be just as simple in Java, you need to find the same library, or write it yourself. - Vartlok
  • Yes, I am thinking about writing a library, I have already learned how to add two variables and write an answer in println. - nabafew

2 answers 2

A complete java solution with good examples. The code will be almost as small as in python.

http://financequotes-api.com/

If you search the source, you can understand how to work with Yahoo api, or read the following instructions

http://meumobi.imtqy.com/stocks%20apis/2016/03/13/get-realtime-stock-quotes-yahoo-finance-api.html

    The low-level version will look something like this:

     package javatest; import java.io.File; import java.io.FileOutputStream; import java.net.URL; import java.nio.channels.Channels; import java.nio.channels.ReadableByteChannel; import java.util.Calendar; public class JavaTest { public static void urlToFile(URL url, File file) throws Exception { ReadableByteChannel rbc = Channels.newChannel(url.openStream()); FileOutputStream fos = new FileOutputStream(file); fos.getChannel().transferFrom(rbc, 0, Long.MAX_VALUE); } public static void main(String[] args) throws Exception { Calendar from = Calendar.getInstance(); from.clear(); Calendar to = Calendar.getInstance(); to.clear(); from.set(2016, 2, 15); to.set(2016, 2, 28); urlToFile( new URL(String.format( "http://ichart.finance.yahoo.com/table.csv?s=AAPL&a=%s&b=%s&c=%s&d=%s&e=%s&f=%s&g=d&ignore=.csv", from.get(Calendar.MONTH), from.get(Calendar.DAY_OF_MONTH), from.get(Calendar.YEAR), to.get(Calendar.MONTH), to.get(Calendar.DAY_OF_MONTH), to.get(Calendar.YEAR) )), new File("file.csv") ); } }