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  • The Java URLConnection class represents a communication link between the URL and the application.
  • This class can be used to read and write data to the specified resource referred by the URL.

How to get the object of URLConnection class

  • The openConnection() method of URL class returns the object of URLConnection class.

Syntax:

public URLConnection openConnection()throws IOException{}  
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Displaying source code of a webpage by URLConnecton class

  • The URLConnection class provides many methods, we can display all the data of a webpage by using the getInputStream() method.
  • The getInputStream() method returns all the data of the specified URL in the stream that can be read and displayed.

Sample Code

import java.io.*;  
import java.net.*;  
public class URLConnectionExample {  
public static void main(String[] args){  
try{  
URL url=new URL("http://www.wikitechy.com/tutorials/java");  
URLConnection urlcon=url.openConnection();  
InputStream stream=urlcon.getInputStream();  
int i;  
while((i=stream.read())!=-1){  
System.out.print((char)i);  
}  
}catch(Exception e){System.out.println(e);}  
}  
}  
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