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GeezerVison is showing www.tutorialspoint.com — Java - HttpURLConnection Class 
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Java - HttpURLConnection ClassJava HttpURLConnection Classjava.net.HttpURLConnection, is an abstract class which represents the HTTP-specific URL connection. Instances of this class can be used both to read from and to write to the resource referenced by the URL. For example −
Steps to make a connection to a URLFollowing are the steps to make a connectiion to the URL and start processing.
HttpURLConnection Class Declarationpublic abstract class HttpURLConnection extends URLConnection HttpURLConnection Class Fields
HttpURLConnection Class MethodsThe HttpURLConnection class has many methods for setting or determining information about the connection, including the following −
ExtendsThis class extends following classes
Example of Java HttpURLConnection ClassThe following HttpURLConnection program connects to a URL entered from the command line. If the URL represents an HTTP resource, the connection is cast to HttpURLConnection, and the data in the resource is read one line at a time. package com.tutorialspoint;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLConnection;
public class HttpUrlConnectionDemo {
public static void main(String [] args) {
try {
URL url = new URL("https://www.tutorialspoint.com");
URLConnection urlConnection = url.openConnection();
HttpURLConnection connection = null;
if(urlConnection instanceof HttpURLConnection) {
connection = (HttpURLConnection) urlConnection;
}else {
System.out.println("Please enter an HTTP URL.");
return;
}
BufferedReader in = new BufferedReader(
new InputStreamReader(connection.getInputStream()));
String urlString = "";
String current;
while((current = in.readLine()) != null) {
urlString += current;
}
System.out.println(urlString);
} catch (IOException e) {
e.printStackTrace();
}
}
}
A sample run of this program will produce the following result − Output$ java HttpURLConnection .....a complete HTML content of home page of tutorialspoint.com..... 
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