Java API Integration

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

URL url = new URL("https://api.whoisfreaks.com/v1.0/whois?apiKey=API_KEY&whois=live&domainName=google.com");
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());

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

URL url = new URL("https://api.whoisfreaks.com/v1.0/whois?apiKey=API_KEY&whois=historical&domainName=google.com");
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());

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

URL url = new URL("https://api.whoisfreaks.com/v1.0/whois?apiKey=API_KEY&whois=reverse&keyword=youtube");
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());

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

URL url = new URL("https://api.whoisfreaks.com/v1.0/bulkwhois?apiKey=API_KEY");
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setRequestMethod("GET");
conn.setRequestProperty("Content-Type", "application/json");
conn.setDoOutput(true);
try(OutputStream os = conn.getOutputStream()) { os.write("{"domainNames": ["amazon.ch","google.com","whoisfreaks.com","nic.dev","news.si"]}".getBytes()); }
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());