From 41efb7277792e9d1502d305cfd706dd514e24663 Mon Sep 17 00:00:00 2001
From: Haidong Ji
Date: Mon, 5 Jul 2021 14:38:04 -0500
Subject: Dijkstra shortest path done, using PriorityQueue. Don't give up! Very
 rewarding!

---
 src/main/PlayGround.java | 13 +++++++++++++
 1 file changed, 13 insertions(+)
 create mode 100644 src/main/PlayGround.java

(limited to 'src/main/PlayGround.java')

diff --git a/src/main/PlayGround.java b/src/main/PlayGround.java
new file mode 100644
index 0000000..14a4c80
--- /dev/null
+++ b/src/main/PlayGround.java
@@ -0,0 +1,13 @@
+import java.util.PriorityQueue;
+import java.util.HashMap;
+public class PlayGround {
+    static int testPriorityQueue() {
+        PriorityQueue<Integer> numbers = new PriorityQueue<>();
+        numbers.add(7);
+        numbers.add(5);
+        numbers.add(8);
+        numbers.add(3);
+       return numbers.poll();
+    }
+
+}
-- 
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