From 8841a720a914ec063e4bd4d37654bbef3e3e5484 Mon Sep 17 00:00:00 2001
From: Sam Gardner <samgardner909@gmail.com>
Date: Wed, 2 Aug 2023 12:05:17 +0100
Subject: [PATCH] BAEL-6837 Add example code for getting the first item from a
 Set

---
 .../GetFirstItemFromSetUnitTest.java          | 35 +++++++++++++++++++
 1 file changed, 35 insertions(+)
 create mode 100644 core-java-modules/core-java-collections-set-2/src/test/java/com/baeldung/firstitemfromset/GetFirstItemFromSetUnitTest.java

diff --git a/core-java-modules/core-java-collections-set-2/src/test/java/com/baeldung/firstitemfromset/GetFirstItemFromSetUnitTest.java b/core-java-modules/core-java-collections-set-2/src/test/java/com/baeldung/firstitemfromset/GetFirstItemFromSetUnitTest.java
new file mode 100644
index 0000000000..ec81c17f93
--- /dev/null
+++ b/core-java-modules/core-java-collections-set-2/src/test/java/com/baeldung/firstitemfromset/GetFirstItemFromSetUnitTest.java
@@ -0,0 +1,35 @@
+package com.baeldung.firstitemfromset;
+
+import static org.junit.Assert.assertEquals;
+
+import java.util.Arrays;
+import java.util.Iterator;
+import java.util.LinkedHashSet;
+import java.util.Optional;
+import java.util.Set;
+
+import org.junit.Test;
+
+public class GetFirstItemFromSetUnitTest {
+
+    @Test
+    public void givenASet_whenUsingIterator_thenRetrieveAnItem(){
+        Set<Integer> set = new LinkedHashSet<>(Arrays.asList(1, 2, 3, 4, 5));
+        Iterator iterator = set.iterator();
+        if(iterator.hasNext()){
+            int retrieved = (int) iterator.next();
+            assertEquals(retrieved, 1);
+        }
+    }
+
+    @Test
+    public void givenASet_whenUsingStreams_thenRetrieveAnItem(){
+        Set<Integer> set = new LinkedHashSet<>(Arrays.asList(1, 2, 3, 4, 5));
+        Optional<Integer> optional = set.stream().findFirst();
+        if(optional.isPresent()){
+            int retrieved = optional.get();
+            assertEquals(retrieved, 1);
+        }
+    }
+
+}