search - How to find a certain property from an object in Java -

so i'm making book class, each book has title, author, etc... want make method searches through properties of objects , finds query. example

public void titlesearch(string query) {     find book query title } 

i'm not sure duplicate didn't know search for.

thanks help. let me know if need more of code.

look @ jxpath library. jxpath can use xpath queries search graphs of objects.

consider example of searhing addressses zipcode=90210:

address address = (address)jxpathcontext.newcontext(vendor).          getvalue("locations[address/zipcode='90210']/address"); 

this xpath expression equivalent following java code:

address address = null; collection locations = vendor.getlocations(); iterator = locations.iterator(); while (it.hasnext()){     location location = (location)it.next();     string zipcode = location.getaddress().getzipcode();     if (zipcode.equals("90210")){       address = location.getaddress();       break;     } }