code: public boolean initSenSegmenter(String modelDir){
  		System.out.println("Initilize JVnSenSegmenter ...");
  		
  		//initialize sentence segmentation
  		vnSenSegmenter = new JVnSenSegmenter();		
  		if (!vnSenSegmenter.init(modelDir)){
  			System.out.println("Error while initilizing JVnSenSegmenter");
  			vnSenSegmenter = null;
  			return false;
  		}
  			
  		return true;
  	}
docs: Initialize the sentence segmetation for Vietnamese
  return true if the initialization is successful and false otherwise.
  
  @param modelDir the model dir
  @return true, if successful