java replace arraylist of strings -

java replace arraylist of strings -

i can't seem figure out how replace array list of strings.

arraylist<string[]> records

so within loop want replace record can maintain getting error.

the method set(int, string[]) in type arraylist not applicable arguments (int, string)

(int = 0; < records.size(); i++) { (int j = 0; j < 2; j++) { if (j == 0) { if(!validaterecords(records.get(i)[j].tostring())) { logging.info("records not parsed " + records.get(i)[j].tostring()); records.set(j, "couldnotbeparsed"); }else { logging.info(records.get(i)[j].tostring()+ " has been sanitized"); } } } }

what proper way replace record using records.set() ?

since not replacing entire array, changing single entry in existing array, need utilize get() followed array write, instead of set():

if(!validaterecords(records.get(i)[j].tostring())) { logging.info("records not parsed " + records.get(i)[j]); records.get(i)[j] = "couldnotbeparsed"; } else { logging.info(records.get(i)[j] + " has been sanitized"); }

note if (j == 0) check within loop looks highly suspicious, because in effect makes loop on j exclusively useless. might write this:

for (int = 0; < records.size(); i++) { if(!validaterecords(records.get(i)[0].tostring())) { logging.info("records not parsed " + records.get(i)[0]); records.get(i)[0] = "couldnotbeparsed"; } else { logging.info(records.get(i)[0] + " has been sanitized"); } }

also note calls of tostring() not necessary when concatenate strings: java compiler insert them you, , take care of null values you.

java arraylist replace