We will start with a main() method in src/com/lingpipe/cookbook/chapter3/CombinedFeatureExtractor.java that we will use to run the feature extractor. The following lines set up features that result from the tokenizer using the LingPipe class, TokenFeatureExtractor:

public static void main(String[] args) {
   int min = 2;
  int max = 4;
  TokenizerFactory tokenizerFactory 
     = new NGramTokenizerFactory(min,max);
  FeatureExtractor<CharSequence> tokenFeatures 
= new TokenFeatureExtractor(tokenizerFactory);

Then, we will construct the feature extractor from the previous recipe.

FeatureExtractor<CharSequence> numberFeatures 
= new ContainsNumberFeatureExtractor();

Next, the LingPipe...