Java API Integration

import java.io.*;
import java.net.*;

URL url = new URL("https://api.whoisfreaks.com/v1.0/asn-whois?apiKey=API_KEY&asn=as56554");
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setRequestMethod("GET");
BufferedReader in = new BufferedReader(new InputStreamReader(conn.getInputStream()));
String inputLine;
StringBuffer content = new StringBuffer();
while ((inputLine = in.readLine()) != null) content.append(inputLine);
in.close();
System.out.println(content.toString());