java csv value comparison for multivalued rows -

I have a CSV file in which these are the following fields. Therefore, I only reduce the required field here.

  "id.attr.id", "id.attr.id1", "id.attr.id2", "id.attr.id7", "Id.attr.arry", "Id.attr.arry1", "id.attr.arry2", "id.attr.arry5", "id.attr.arry4" "0", "8",, "8", "0" "3 "7", "7", "7", "3" "4",, "8", "8", "4" 5 "," 7 "," 5 "," 7 " "5" "4", "8", "4", "8", "3", "7",, "7", "3"  

Now to define the problem, therefore, for the "id.attr.id" group which means ("id.attr.id", "id.attr.id1", "id.attr. Id2 "," id.attr.id7 ") & amp; "id.attr.arry" group means ("id.attr.arry", "id.attr.arry1", "id.attr.arry2", "Id.attr .arry5 "," id.attr.arry4 ") I need to return all the multi-field values.

So what I have done is that.

OpenCSS (string filename) {{BufferedReader bufferedReader = new BufferedReader (new FileReader (filename)) to use header for private zeros parsing mesh; String line; Stringbuilder builder = new stringbiller (); Int count = 0; Boolean process header = wrong; Maps & lt; Integer, string & gt; ColumnIndexMap = New Hashmap & lt; Integer, string & gt; (); While ((line = bufferedReader.readLine ()) = null) {// We only process the header line and prepare the column index map, if (processor header) {processHeader = true; CSVR Reader = New CSVRder (new stringreader (line)); String [] line = reader Reed (); (Int i = 0; i & lt; row.length; i ++) for {string column name = row [i]; If (columnName.matches ("id.attr.id (. *)")) {ColumnIndexMap.put (i, columnName); }}} {// Here we process al data lines and maintain a buffer count; Builder.append (line) .append ("\ n"); If (count% 500 == 0) {process (builder.toString (), columnInndexMap); Builder = new stringbiller (); }}} If (builder .length ()> gt; 0} {process (builder.string ()), column index map; }} Hold (FileNotFoundException e) {System.err.println (e.getMessage ()); } Hold (IOException e) {System.err.println (e.getMessage ()); }} Private zero process throws IOException (string record, map and lieutenant; integer, string & gt; column index map) {CSV reader reader = new CSVRDER (new string reader (record)); Maps & lt; String, string & gt; ColumnValueMap; (String [] for line: reader.readAll ()) {columnValueMap = new hashmap & lt; String, string & gt; (); {If (columnIndexMap.containsKey (i)) {string value = line [i]; (for int i = 0; i & lt; row.length; i ++); If (value.trim (). Length ()> gt; {columnValueMap.put (columnIndexMap.get (i), value);}}} // if (columnValueMap> i) {System.out.println (" ColumnValueMap = "+ columnValueMap);}}}}

Then this program is returning all the values ​​in the" id.attr.id "group. Now the column validity returns what all the maps The value of the column is as follows.

As expected results are:

The program should return from the given CSV.

  4 , 8,5,7,51 4,8 3,7  

Also, please do let me know with the "id.attr You can provide potential changes in tan .id "group" id.attr.arry "matches the group, if so, we also need to return them too.

  0 3 4 , 8 5,7 4,8 3,7,