package org.knowm.xchange.examples.bitfinex.marketdata;

import java.io.IOException;

import org.knowm.xchange.Exchange;
import org.knowm.xchange.ExchangeFactory;
import org.knowm.xchange.bitfinex.v1.BitfinexExchange;
import org.knowm.xchange.bitfinex.v1.dto.marketdata.BitfinexDepth;
import org.knowm.xchange.bitfinex.v1.service.BitfinexMarketDataServiceRaw;
import org.knowm.xchange.currency.CurrencyPair;
import org.knowm.xchange.dto.marketdata.OrderBook;
import org.knowm.xchange.service.marketdata.MarketDataService;

/**
 * Demonstrate requesting Order Book at Bitfinex
 */
public class BitfinexDepthDemo {

  public static void main(String[] args) throws Exception {

    // Use the factory to get BTC-E exchange API using default settings
    Exchange btce = ExchangeFactory.INSTANCE.createExchange(BitfinexExchange.class.getName());

    // Interested in the public market data feed (no authentication)
    MarketDataService marketDataService = btce.getMarketDataService();

    generic(marketDataService);
    raw((BitfinexMarketDataServiceRaw) marketDataService);

  }

  private static void generic(MarketDataService marketDataService) throws IOException {

    // Get the latest order book data for CurrencyPair.BTC_USD
    OrderBook orderBook = marketDataService.getOrderBook(CurrencyPair.BTC_USD, 10000, 10000);

    System.out.println("Current Order Book size for BTC / USD: " + (orderBook.getAsks().size() + orderBook.getBids().size()));

    System.out.println("First Ask: " + orderBook.getAsks().get(0).toString());

    System.out.println("First Bid: " + orderBook.getBids().get(0).toString());

    System.out.println(orderBook.toString());
  }

  private static void raw(BitfinexMarketDataServiceRaw marketDataService) throws IOException {

    // Get the latest order book data for BTC/CAD
    BitfinexDepth bitfinexDepth = marketDataService.getBitfinexOrderBook("btcusd", 50, 50);

    System.out.println("Current Order Book size for BTC / USD: " + (bitfinexDepth.getAsks().length + bitfinexDepth.getBids().length));

    System.out.println("First Ask: " + bitfinexDepth.getAsks()[0].toString());

    System.out.println("First Bid: " + bitfinexDepth.getBids()[0].toString());

    System.out.println(bitfinexDepth.toString());
  }

}

package org.knowm.xchange.examples.bitfinex.marketdata;

import java.io.IOException;

import org.knowm.xchange.Exchange;
import org.knowm.xchange.ExchangeFactory;
import org.knowm.xchange.bitfinex.v1.BitfinexExchange;
import org.knowm.xchange.bitfinex.v1.dto.marketdata.BitfinexDepth;
import org.knowm.xchange.bitfinex.v1.service.BitfinexMarketDataServiceRaw;
import org.knowm.xchange.currency.CurrencyPair;
import org.knowm.xchange.dto.marketdata.OrderBook;
import org.knowm.xchange.service.marketdata.MarketDataService;

/**
 * Demonstrate requesting Order Book at Bitfinex
 */
public class BitfinexDepthDemo {

  public static void main(String[] args) throws Exception {

    // Use the factory to get BTC-E exchange API using default settings
    Exchange bitfinex = ExchangeFactory.INSTANCE.createExchange(BitfinexExchange.class.getName());

    // Interested in the public market data feed (no authentication)
    MarketDataService marketDataService = bitfinex.getMarketDataService();

    generic(marketDataService);
    raw((BitfinexMarketDataServiceRaw) marketDataService);

  }

  private static void generic(MarketDataService marketDataService) throws IOException {

    // Get the latest order book data for CurrencyPair.BTC_USD
    OrderBook orderBook = marketDataService.getOrderBook(CurrencyPair.BTC_USD, 10000, 10000);

    System.out.println("Current Order Book size for BTC / USD: " + (orderBook.getAsks().size() + orderBook.getBids().size()));

    System.out.println("First Ask: " + orderBook.getAsks().get(0).toString());

    System.out.println("First Bid: " + orderBook.getBids().get(0).toString());

    System.out.println(orderBook.toString());
  }

  private static void raw(BitfinexMarketDataServiceRaw marketDataService) throws IOException {

    // Get the latest order book data for BTC/CAD
    BitfinexDepth bitfinexDepth = marketDataService.getBitfinexOrderBook("btcusd", 50, 50);

    System.out.println("Current Order Book size for BTC / USD: " + (bitfinexDepth.getAsks().length + bitfinexDepth.getBids().length));

    System.out.println("First Ask: " + bitfinexDepth.getAsks()[0].toString());

    System.out.println("First Bid: " + bitfinexDepth.getBids()[0].toString());

    System.out.println(bitfinexDepth.toString());
  }

}

Change var name to bitfinex on Bitfinex demo