add Demo suffix to avoid naming conflict

fishercoder1534 · fishercoder1534 · commit 3c615de6c4f6 · 2024-02-05T08:35:14.000-08:00
diff --git a/src/main/java/java_collections/HashMapDemo.java b/src/main/java/java_collections/HashMapDemo.java
@@ -2,13 +2,13 @@
 
 import java.util.Map;
 
-public class HashMap {
+public class HashMapDemo {
     private static final int NUMBER_OF_MAP_ENTRIES = 2;
 
     public static void main(String... args) {
         System.out.println("Program started.");
-        HashMap hashMap = new HashMap();
-        hashMap.understandHashMapInternalWorkings();
+        HashMapDemo hashMapDemo = new HashMapDemo();
+        hashMapDemo.understandHashMapInternalWorkings();
         System.out.println("Program finished.");
     }
 
