Java API Integration

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

URL url = new URL("https://api.whoisfreaks.com/v2.0/dns/live?apiKey=API_KEY&domainName=whoisfreaks.com&ipAddress=8.8.8.8&type=all");
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/v2.0/dns/historical?apiKey=API_KEY&domainName=whoisfreaks.com&type=all&page=1");
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/v2.1/dns/reverse?apiKey=API_KEY&format=json&value=8.8.8.8&type=a");
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/v2.0/dns/bulk/live?apiKey=API_KEY&type=all&format=json");
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": ["whoisfreaks.com","jfreaks.com"],"ipAddresses": ["1.1.1.1","8.8.8.8"]}".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());