Help with java I/O reading from a URL

Question

Hello,
i have just started learning Java I/O and decided to make a program that reads a URL, gets the source of the website, then isolates every single link on the root web page and its sister pages.
my problem right now is how do i isolate the links of the webpage? I have developed the follwing code:
public String getNextHrefURL( Scanner in )
throws Exception
while ( in.hasNext() )
if ( in.hasNext( "<a href=" ) )
in.useDelimeter( "\"" );
in.useDelimeter( "" );
return in.next();
else
return null;
the entire source of the webpage has been Delimited to one line and i am using scanners to evaluate the file.
Am i on the right track, or is their a certain method i should use with my Scanner object to acquire a link between the quotes of a <a href="...">?
thank you

Answer 1

after formatting my code to use a string, will this
new code be able to look through the source of a URL
and isolate all the links? and if there are no links
on the page, will it return NULL properly to indicate
that there are no links?COULD it? Definitely. WILL it? It depends on you :)
>
public String getNextHrefURL( Scanner in )
throws Exception
while ( in.hasNext() )
source = in.next();
if ( source.startsWith( "href=" ) )
quote = source.indexOf("\"", 5 );
source = source.substring( 6, quote );
return source;
else
return null;