apache poi - paragraph.getRuns() to separate a paragraph -

when use apache poi change date of contract automatically, confused @ how dose paragraph.getruns() separate paragraph. have following paragraph 自 2014 年 10 月 1 日起至 2014 年 10 月 31 日止

i use following code see how many xwpfrun paragraph.getruns() return

string currentparagraph = "";                 for(xwpfrun xwpfrun : paragraph.getruns()){                     currentparagraph += xwpfrun.gettext(0);                     system.out.println(currentparagraph);                 } 

i find first 5 number xwpfrun independently,eg ,2014,10,1 last number "31" separated 2 xwpfrun :"3", , "1";

this makes hard change date xwpfrun ,and want know how deal , how paragraph.getruns() works?

sometimes text in docx files gets broken arbitrary number of runs. while inconvenient, it's not difficult deal with.

the solution iterate runs in paragraph, , concatenate text each string. then, update date , store text of first run. lastly, can remove or set text in other runs "".