Adding exception throws in case of handling empty heap.

NicolasRenard · NicolasRenard · commit c3dda1f0ddf1 · 2016-12-13T15:52:17.000+01:00
diff --git a/data_structures/heaps/MaxHeap.java b/data_structures/heaps/MaxHeap.java
@@ -84,6 +84,7 @@ public void insertElement(HeapElement element) {
 
     @Override
     public void deleteElement(int elementIndex) {
+		if (isempty(maxHeap)) throw new EmptyHeapException("Attempt to delete an element from an empty heap");
         if ((elementIndex > maxHeap.size()) && (elementIndex <= 0)) throw new IndexOutOfBoundsException("Index out of heap range");
         // The last element in heap replaces the one to be deleted
         maxHeap.set(elementIndex - 1, getElement(maxHeap.size()));
diff --git a/data_structures/heaps/MinHeap.java b/data_structures/heaps/MinHeap.java
@@ -87,6 +87,7 @@ public void insertElement(HeapElement element) {
 
     @Override
     public void deleteElement(int elementIndex) {
+		if (isempty(maxHeap)) throw new EmptyHeapException("Attempt to delete an element from an empty heap");
         if ((elementIndex > minHeap.size()) && (elementIndex <= 0)) throw new IndexOutOfBoundsException("Index out of heap range");
         // The last element in heap replaces the one to be deleted
         minHeap.set(elementIndex - 1, getElement(minHeap.size()));
