io - Java Buffer reader data from text file with comma manipulation -


i'm new java programming , i'm challenging myself 1 seems when comes buffer reader , writer lost. have 2 text file parsing out csv file, , want compare data between textfile.

this looks inside text file.

file1.text sample1,true,online   file2.text sample1,true,test,check,ol  expected output : valid  file3.text online,ol offline,of idle, il

i want compare online in file1 , ol in file2. can see seperated comma. if online word in file1 change offline or idle output should invalid , same on file2. in advance guys!any appreciated. cheers

here points.

file3 looks candidate extract map<k, v>, place first value key , second value.

read file1 , file2 lines , split them comma. like:

try (bufferedreader br = new bufferedreader(new filereader(file))) {     string line;     while ((line = br.readline()) != null) {        string[] values = line.split(",");        // extract values indexes , use created map file3 validate input.     } }

validation logic:

map<string, string> map; // assuming populate file3 content , contains online->ol, offline->of etc. ; void validate(string valuefromfile1, string valuefromfile2) {     if (map.containskey(valuefromfile1) && map.get(valuefromfile1).equals(valuefromfile2)) {         // valid;     } else {         // invalid     }

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