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Removing / processing strings in Java

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

I would like to clear the specified string from the first character to search.do?

The value of the resulting string will look like this:

String scrapedUrl = "http://someurl/search.do?"

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

Thanks Sony

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8 answers

Use regex:

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

Of course, you can use solutions indexOfand all this, but your requirement was to precisely "combine" everything to the first search.do?. Such an operation is best performed using a regular expression.

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Try this one (untested):

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

He is looking for the first appearance of '?' character, and if found chopped off the characters that follow.

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indexOf() subString() . String API:

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

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

Read more .

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

int index = url.indexOf("?");
String newURL = url.subString(0,index);
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You can use substring and indexOf

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