data_structures_free

net/datastructures/DefaultComparator.java

@@ -0,0 +1,22 @@
+package net.datastructures;
+import java.util.Comparator;
+import java.io.Serializable;
+/** Comparator based on the natural ordering
+  *
+  *  @author Michael Goodrich
+  */
+//begin#fragment DefaultComparator
+public class DefaultComparator<E> implements Comparator<E> {
+//end#fragment DefaultComparator
+  /** Compares two given elements
+    *
+    * @return a negative integer if <tt>a</tt> is less than <tt>b</tt>,
+    * zero if <tt>a</tt> equals <tt>b</tt>, or a positive integer if
+    * <tt>a</tt> is greater than <tt>b</tt>
+    */
+//begin#fragment DefaultComparator
+  public int compare(E a, E b) throws ClassCastException { 
+    return ((Comparable<E>) a).compareTo(b);
+  }
+}
+//end#fragment DefaultComparator