data_structures_free

net/datastructures/InvalidKeyException.java

@@ -0,0 +1,11 @@
+package net.datastructures;
+/**
+ * Thrown when a key is determined to be invalid.
+ * @author Roberto Tamassia
+ */
+public class InvalidKeyException  extends RuntimeException {
+  public InvalidKeyException (String message) {
+    super (message);
+  }
+  public static final long serialVersionUID = 424242L;
+}