public Recommender(IComputeSimilarityStrategy similarStrategy, int kAmount, double predefinedSm, char[] del)
 {
     similarityStrategy = similarStrategy;
     k = kAmount;
     predefinedSimilarity = predefinedSm;
     delimeter = del;
 }
 public void setSimilarityStrategy(IComputeSimilarityStrategy computeSimilarityStrategy)
 {
     similarityStrategy = computeSimilarityStrategy;
 }
 public Recommender(IComputeSimilarityStrategy similarStrategy, int kAmount, double predefinedSm)
 {
     similarityStrategy = similarStrategy;
     k = kAmount;
     predefinedSimilarity = predefinedSm;
 }