data_structures_free

net/datastructures/IndexList.java

@@ -0,0 +1,33 @@
+package net.datastructures;
+import java.util.Iterator;
+/**
+ * An interface for array lists.
+ * @author Roberto Tamassia, Michael Goodrich
+ */
+//begin#fragment Header
+public interface IndexList<E> {
+//end#fragment Header
+//begin#fragment Iterator
+  // ... the other List methods ...
+//end#fragment Iterator
+//begin#fragment List
+  /** Returns the number of elements in this list. */
+  public int size();
+  /** Returns whether the list is empty. */
+  public boolean isEmpty();
+  /** Inserts an element e to be at index i, shifting all elements after this. */
+  public void add(int i, E e) 
+    throws IndexOutOfBoundsException;
+  /** Returns the element at index i, without removing it. */
+  public E get(int i) 
+    throws IndexOutOfBoundsException;
+  /** Removes and returns the element at index i, shifting the elements after this. */
+  public E remove(int i)
+    throws IndexOutOfBoundsException;
+  /** Replaces the element at index i with e, returning the previous element at i. */
+  public E set(int i, E e)
+    throws IndexOutOfBoundsException;
+//end#fragment List
+//begin#fragment Tail
+}
+//end#fragment Tail