For example, I have a string as below:
<http://www.w3.org/2000/01/rdf-schema#label> "Telecommunications law"@en <http://en.wikipedia.org/wiki/>
What is the easiest way to extract the substring:
Telecommunication law
Please note that the substring contains a space.
You could use Pattern and Matcher :
Pattern p = Pattern.compile("\".*\"");
Matcher m = p.matcher(s);
if(m.find()){
String resultString = m.group();
}
In your case, resultString will contain ["Telecommunications law"] and you can trim the double quotes if you don't want to keep them.
String.split() the string on ", and select the second element in the returned array:
String tokens[] = yourString.split("\"");
// tokens[1] will contain Telecommunications law
what do you mean "extracting the string" ?
getting the first occurence of the string is by:
int index = string.indexOf("Telecommunications law");
the most efficient way of getting what is in between the first parenthesis and the second is by:
final String test="http://www.w3.org/2000/01/rdf-schema#label \"Telecommunications law\"@en http://en.wikipedia.org/wiki/";
final int firstIndex=test.indexOf('\"');
final int lastIndex=test.indexOf('\"',firstIndex+1);
final String result=test.substring(firstIndex+1,lastIndex);
System.out.println(result);
public static void main(String[] args) {
String str = "http://www.w3.org/2000/01/rdf-schema#label \"Telecommunications law\"@en http://en.wikipedia.org/wiki/" ;
String temp = str.substring(str.indexOf('\"')+1, str.indexOf('\"',str.indexOf('\"')+1));
System.out.print(temp);
}
public static void main(String args[]){
String yourString = "<http://www.w3.org/2000/01/rdf-schema#label> \"Telecommunications law\"@en <http://en.wikipedia.org/wiki/>";
String tokens[] = yourString.split("\"");
for(int i = 0; i < tokens.length; i++){
if(tokens[i].equals("Telecommunications law")){
System.out.println(tokens[i]);
}
}
}