java - I can not update my database. (Array2D) (JAVAGUI) -

for (string[] array : checkstore1) {     (string element : array) {         string sql5  = "update product set "         + "pro_store = '" + element + "'" + ","         + "where pro_id = '" + array + "'";         stmt.executeupdate(sql5);     } } 

any suggestions on how correct code helpful, thanks!

"where pro_id = '" + array + "'"; 

you should check if want use array here.you sql where pro_id = '[ljava.lang.string;@72ffb'

i think should change array string value.