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   package org.kuali.mobility.academics.util;
   
   import java.util.Comparator;
   import org.kuali.mobility.academics.entity.Section;
   
  /**
   *
   * @author xinfeng
   */
  public class SortSections implements Comparator<Section> {
  
      @Override
      public int compare(Section s1, Section s2) {
          int comp;
          comp = s1.getSubjectId().compareTo(s2.getSubjectId());
          
          if (comp==0) {
              comp = s1.getCatalogNumber().compareTo(s2.getCatalogNumber());
              
              if (comp==0) {
                  comp = s1.getNumber().compareTo(s2.getNumber());
              }
          }
          
          return comp;
      }
      
  }