Core Java 8 refactor (#3342)

core-java-8/src/main/java/com/baeldung/stream/Product.java

@@ -1,4 +1,4 @@
-package com.baeldung.streamApi;
+package com.baeldung.stream;
 
 import java.util.List;
 import java.util.stream.Stream;

core-java-8/src/main/java/com/baeldung/stream/StreamApi.java

@@ -16,7 +16,7 @@ public class StreamApi {
     }
     
     public static String getLastElementUsingSkip(List<String> valueList) {
-        long count = valueList.stream().count();
+        long count = (long) valueList.size();
         Stream<String> stream = valueList.stream();
         return stream.skip(count - 1).findFirst().orElse(null);
     }