How to call URL from JAVA

How to call URL from JAVA

package com.javanotes2all.java.reqRes;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;

public class CallUrl 
{
  public static void main(String[] args) 
  {
         URL url;
         try 
         {
             // get URL content
             String a="http://docs.oracle.com/javase/tutorial/jdbc/basics/sqldatasources.html";
             url = new URL(a);
             URLConnection conn = url.openConnection();
             // open the stream and put it into BufferedReader
             BufferedReader br = new BufferedReader(new InputStreamReader(conn.getInputStream()));
             String inputLine;
             while ((inputLine = br.readLine()) != null) {
                     System.out.println(inputLine);
             }
             br.close();

             System.out.println("Done");

         } catch (MalformedURLException e) {
             e.printStackTrace();
         } catch (IOException e) {
             e.printStackTrace();
         }

     }

}