Url connection in java

[srikandula]

Can any one help me in this problem ?

I have created an URL to get the information from some site say as

URL hp= new URL("http","

http://www.java.sun.com";,"/index.html");

and opened the conenction as

URLConnection hpcon= hp.openConnection();

But when i am reading the information by using

String content="";
byte b[]= new byte[1024];
int nbytes;
BufferedInputStream in = new BufferedInputStream(hpcon.getInputStream(),2048);
while((nbytes =in.read(b,0,1024))!=-1){
content = new String(b,0,nbytes);
System.out.println("the info :"+ content);
}

I am getting the UnknownhostException turned on though my computer is connected to
the net.But when i am accessing the intrnal site i not getting any error message,so
how can i avoid the exception for the external sites avoiding this error.Can any one
please give the complete detailed information on this to me immediately.

 

[srikandula]

do add the
proxy server information in the command line prompt before running as to request the proxy server the page you are requiring

the command line paramters are

http.proxyHost= /* enter the ip add of the proxy server as 205.41.227.32*/
http.proxyPort= /*enter the port as 1080 */