regex - How to extract substrings from a string in java -

regex - How to extract substrings from a string in java -

i not confident in java need help extract multiple substrings string.string given below.

i have text file perchance thousands of similar pos-tagged lines need extract original text that.i have tried using tokenizer didn't result wanted.i tried using pattern matcher , having problems regex.

string="i_prp recently_rb purchased_vbd this_dt camera_nn";

i want output= purchased camera.

i use

regex: [\/](.*?)\s\b

but not working.please help me.

try

string s= "i_prp recently_rb purchased_vbd this_dt camera_nn"; s = s.replaceall("_\\w+(?=(\\s|$))", ""); system.out.println(s);

prints

i purchased photographic camera

java regex stanford-nlp