RecordReader recordReader = new CSVRecordReader(numLinesToSkip,delimiter);
recordReader.initialize(new FileSplit(new ClassPathResource("iris.txt").getFile()));

SplitTestAndTrain testAndTrain = allData.splitTestAndTrain(0.65);  //Use 65% of data for training

DataSet trainingData = testAndTrain.getTrain();
DataSet testData = testAndTrain.getTest();

LinkedList<String> list=new LinkedList<String>();
   list.add("6.3,2.8,5.1,1.5,2"); // csv format of iris data
   list.add("6.1,2.6,5.6,1.4,2"); // csv format of iris data
   RecordReader recordReader = new ListReader(list);
   recordReader.initialize(new FileSplit(new ClassPathResource("iris.txt").getFile()));
   DataSet trainingData = testAndTrain.getTrain();
DataSet testData = testAndTrain.getTest();