java - Why replaceAll method is not working? -

i read file this:

list<string> list = files.readalllines(paths.get("file.csv")); 

after try call replaceall method on every string in list, doesn't work regex , replacement string. although, when apply replaceall same arguments string assign in code, works fine. strings this: "hello","world","!!!"

edit:

list<string> res = files.readalllines(paths.get("timetable.csv"));  string p = "^\"(\\w+) (\\w+) (\\w+) (?:.+)?\",\"(\\d+)\\.(\\d+)\\.(\\d+)\",\"(\\d+):(\\d+):(\\d+)\"(?:.*?)$/i"; string rep = "$6-$5-$4 ==> $7:$8 $1 $2 $3"; string s = res.get(1).replaceall(p, rep); system.out.print(s); 

the file consists of strings that:

"ak pz 310u pi-13-5","23.02.2015","07:45:00","23.02.2015","09:20:00","false","true","23.02.2015","07:40:00","2","common","ak pz 310u pi-13-5","common" 

here exact code i'm using: http://pastebin.com/ghhrrwau

and here file i'm trying parse: http://www.fileconvoy.com/dfl.php?id=g450e5a3e83854bdc999643999f2ceb8c622d6abf2

regex headache me, too. regex expression correct (you can check on https://regex101.com/, example). java , should use inline modifier:

string p = "^\"(\\w+) (\\w+) (\\w+) (?:.+)?\",\"(\\d+)\\.(\\d+)\\.(\\d+)\",\"(\\d+):(\\d+):(\\d+)\"(?:.*?)$"; string rep = "$6-$5-$4 ==> $7:$8 $1 $2 $3"; string test = "\"ak pz 310u pi-13-5\",\"23.02.2015\",\"07:45:00\",\"23.02.2015\",\"09:20:00\",\"false\",\"true\",\"23.02.2015\",\"07:40:00\",\"2\",\"common\",\"ak pz 310u pi-13-5\",\"common\""; string s = test.replaceall(p, rep); system.out.print(s); 

output:

2015-02-23 ==> 07:40 ak pz 310u 

btw, \i modifier useless here, because \w matches [a-za-z0-9_]

edit file contains non-latin characters, can use regex groups instead:

list<string> res = files.readalllines(paths.get("timetable.csv")); string p = "(?i)^\"([\\p{l}_]+) (\\p{l}+) ([\\p{l}\\p{n}-_]+) (?:.+)?\",\"(\\d+)\\.(\\d+)\\.(\\d+)\",\"(\\d+):(\\d+):(\\d+)\"(?:.*?)$"; string rep = "$6-$5-$4 ==> $7:$8 $1 $2 $3"; (string str : res){     system.out.println(str.replaceall(p, rep)); }