I want the pattern for removing the &b=128&f=norefer from following url

Question

http://www.yahoo.com &b=128&f=norefer

I want to remove &b=128&f=norefer

String finalUrl =decodedUrl.repl         


        

Answer 1

you should be using URL object of java for this : http://download.oracle.com/javase/1.4.2/docs/api/java/net/URL.html#getHost()
[search for getHost() method in it.]

Answer 2

You can use the following regex replacement to remove everything after the first ampersand:

"http://www.yahoo.com &b=128&f=norefer".replaceAll("&.*$", "");

Answer 3

Is the reason for not wanting a hardcoded string that you wish to be able to remove some other string as well? Then you could consider writing a method like:

public String removeNoise(String url, String noisePattern) {
    return url.replace(noisePattern, "");
}