String extraction/manipulation in Java

String url = "http://someurl/search.do?/remainingurl"

I would like to scrape the above string from the first character upto search.do?

Meaning, the resulting String would look like so:

String scrapedUrl = "http://someu开发者_运维百科rl/search.do?"

Is there a String operation in Java to achieve the above action ?

Thanks, Sony

Use a regular expression:

String scrapedUrl = url.replaceAll("(.*?search\\.do\\?).*", "$1");

Of course you can use indexOf solutions and all of that, but your requirement was to exactly ''match'' everything up until the first search.do?. That kind of operation is best done using a regular expression.

Try this (untested):

int index = url.indexOf("?");
if (index >= 0)
    url= url.substring(0, index);

It looks for the first occurance of the '?' character and if found chops off the characters that follow.

You can use a combination of indexOf() and subString() to chop up the String. Check out the methods of String in the API:

http://download.oracle.com/javase/6/docs/api/java/lang/String.html

Yes, use this : subString(start, end) and indexOf(string)

I would recommend:

int index = url.indexOf("?");
String newURL = url.subString(0,index);

You can use substring and indexOf

String scrapedUrl = url.substring(0, url.indexOf('?');

final String splitter = "search.do?";
String[] strings = url.split("search\\.do\\?");
String scrapedUrl = strings[0] + splitter;

Read more.

    String url = "http://someurl/search.do?/remainingurl";
   String scrapedUrl =url.substring(0,url.lastIndexOf("?")+1);
   System.out.println(scrapedUrl);