Added Stream Api

MherBaghinyan · MherBaghinyan · commit ca98fbb7062c · 2019-01-31T16:18:59.000+04:00
diff --git a/core-java-collections-list/src/main/java/com/baeldung/list/primitive/PrimitiveCollections.java b/core-java-collections-list/src/main/java/com/baeldung/list/primitive/PrimitiveCollections.java
@@ -7,15 +7,20 @@
 
 import java.util.Arrays;
 import java.util.List;
+import java.util.OptionalDouble;
+import java.util.function.IntPredicate;
+import java.util.stream.IntStream;
 
 public class PrimitiveCollections {
 
     public static void main(String[] args) {
 
-        int[] primitives = new int[] {5, 10, 0, 2};
+        int[] primitives = new int[] {5, 10, 0, 2, -8};
 
         guavaPrimitives(primitives);
 
+        intStream(primitives);
+
         TIntArrayList tList = new TIntArrayList(primitives);
 
         cern.colt.list.IntArrayList coltList = new cern.colt.list.IntArrayList(primitives);
@@ -29,6 +34,15 @@ public static void main(String[] args) {
         System.out.println(fastUtilList);
     }
 
+    private static void intStream(int[] primitives) {
+
+        IntStream stream = IntStream.of(5, 10, 0, 2, -8);
+
+        IntStream newStream = IntStream.of(primitives);
+
+        OptionalDouble average = stream.filter(i -> i > 0).average();
+    }
+
 
     private static void guavaPrimitives(int[] primitives) {
 
