code: package org.rug.data.characteristics.smells;
  
  import org.apache.tinkerpop.gremlin.structure.Vertex;
  import org.rug.data.smells.UDSmell;
  
  /**
   * This characteristic returns the DUD property of the UD smell. DUD=Degree of Unstable Dependency
   * And is the ratio BadDependencies/TotalNumOfDependencies.
   */
  public class Strength extends AbstractSmellCharacteristic {
      /**
       * Sets up the name of this smell characteristic.
       */
      public Strength() {
          super("strength");
      }
  
      @Override
      public String visit(UDSmell smell) {
          Vertex smellNode = smell.getSmellNodes().iterator().next();
          double dud = Double.parseDouble(smellNode.value("DUD").toString()) / 100d;
          return String.valueOf(dud);
      }
  }
  