Implementato alcuni esercizi

exceptions/NotEnoughElements.java

@@ -0,0 +1,21 @@
+package exceptions;
+/**
+ * Thrown when a position is determined to be invalid.
+ * @author Roberto Tamassia, Michael Goodrich
+ */
+//Copyright (c) 2003 Brown University, Providence, RI
+//Additional modifications and methods by xgiovio
+
+
+public class NotEnoughElements extends RuntimeException {
+  public NotEnoughElements(String err) {
+    super(err);
+  }
+
+  public NotEnoughElements() {
+      super("NotEnoughElements");
+
+  }
+
+}
+