Implementazione parziale Priority Queue

priorityqueue/Entry.java

@@ -0,0 +1,12 @@
+package priorityqueue;
+
+/**
+ * Created with xgiovio.macbookair.
+ * User: xgiovio
+ * Date: 01/04/14
+ * Time: 16:27
+ */
+public interface Entry<K,V> {
+    public K getKey();
+    public V getValue();
+}

priorityqueue/PriorityQueue.java

@@ -0,0 +1,18 @@
+package priorityqueue;
+
+import exceptions.EmptyPriorityQueueException;
+import java.security.InvalidKeyException;
+
+/**
+ * Created with xgiovio.macbookair.
+ * User: xgiovio
+ * Date: 01/04/14
+ * Time: 16:29
+ */
+public interface PriorityQueue<K,V> {
+    public int size();
+    public boolean isEmpty();
+    public Entry<K,V> min() throws EmptyPriorityQueueException;
+    public Entry<K,V> insert(K key, V value) throws InvalidKeyException;
+    public Entry<K,V> removeMin() throws EmptyPriorityQueueException;
+}