From 2da5d14e25cb9e31911d7d428d1c1136a5356e12 Mon Sep 17 00:00:00 2001
From: Bahaa El-Din Helmy <bahaavampire@yahoo.com>
Date: Mon, 15 May 2023 18:14:21 +0300
Subject: [PATCH] Add files via upload (#14006)

---
 .../core-java-collections-list-5/pom.xml      | 73 ++++++++++---------
 .../ArrayAndArrayListPerformance.java         | 65 +++++++++++++++++
 2 files changed, 105 insertions(+), 33 deletions(-)
 create mode 100644 core-java-modules/core-java-collections-list-5/src/main/java/com/baeldung/arrayandlistperformance/ArrayAndArrayListPerformance.java

diff --git a/core-java-modules/core-java-collections-list-5/pom.xml b/core-java-modules/core-java-collections-list-5/pom.xml
index b51dda4091..c7ee3c3efd 100644
--- a/core-java-modules/core-java-collections-list-5/pom.xml
+++ b/core-java-modules/core-java-collections-list-5/pom.xml
@@ -1,34 +1,41 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-    <modelVersion>4.0.0</modelVersion>
-    <artifactId>core-java-collections-list-5</artifactId>
-    <name>core-java-collections-list-5</name>
-    <packaging>jar</packaging>
-
-    <parent>
-        <groupId>com.baeldung.core-java-modules</groupId>
-        <artifactId>core-java-modules</artifactId>
-        <version>0.0.1-SNAPSHOT</version>
-    </parent>
-
-    <dependencies>
-        <dependency>
-            <groupId>commons-lang</groupId>
-            <artifactId>commons-lang</artifactId>
-            <version>${commons-lang.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>org.apache.commons</groupId>
-            <artifactId>commons-lang3</artifactId>
-            <version>${commons-lang3.version}</version>
-        </dependency>
-    </dependencies>
-
-    <properties>
-        <commons-lang.version>2.2</commons-lang.version>
-        <commons-lang3.version>3.12.0</commons-lang3.version>
-    </properties>
-
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <artifactId>core-java-collections-list-5</artifactId>
+    <name>core-java-collections-list-5</name>
+    <packaging>jar</packaging>
+
+    <parent>
+        <groupId>com.baeldung.core-java-modules</groupId>
+        <artifactId>core-java-modules</artifactId>
+        <version>0.0.1-SNAPSHOT</version>
+    </parent>
+
+    <dependencies>
+	<dependency>
+            <groupId>org.openjdk.jmh</groupId>
+            <artifactId>jmh-core</artifactId>
+            <version>1.36</version>
+        </dependency>
+
+        <dependency>
+            <groupId>commons-lang</groupId>
+            <artifactId>commons-lang</artifactId>
+            <version>${commons-lang.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.commons</groupId>
+            <artifactId>commons-lang3</artifactId>
+            <version>${commons-lang3.version}</version>
+        </dependency>
+    </dependencies>
+
+    <properties>
+	<jmh.version>1.21</jmh.version>
+        <commons-lang.version>2.2</commons-lang.version>
+        <commons-lang3.version>3.12.0</commons-lang3.version>
+    </properties>
+
 </project>
\ No newline at end of file
diff --git a/core-java-modules/core-java-collections-list-5/src/main/java/com/baeldung/arrayandlistperformance/ArrayAndArrayListPerformance.java b/core-java-modules/core-java-collections-list-5/src/main/java/com/baeldung/arrayandlistperformance/ArrayAndArrayListPerformance.java
new file mode 100644
index 0000000000..3b8fa8c9f3
--- /dev/null
+++ b/core-java-modules/core-java-collections-list-5/src/main/java/com/baeldung/arrayandlistperformance/ArrayAndArrayListPerformance.java
@@ -0,0 +1,65 @@
+package com.baeldung.arrayandlistperformance;
+import org.openjdk.jmh.annotations.*;
+import org.openjdk.jmh.runner.options.OptionsBuilder;
+import java.util.ArrayList;
+import java.util.concurrent.TimeUnit;
+@State(Scope.Benchmark)
+@BenchmarkMode(Mode.AverageTime)
+@OutputTimeUnit(TimeUnit.NANOSECONDS)
+public class ArrayAndArrayListPerformance {
+
+    @Benchmark
+    public void arrayCreation() {
+        int[] array = new int[1000000];
+    }
+
+    @Benchmark
+    public void arrayListCreation() {
+        ArrayList<Integer> list = new ArrayList<>(1000000);
+    }
+
+    @Benchmark
+    public void arrayItemSetting() {
+        int[] array = new int[1000000];
+        array[0] = 10;
+    }
+
+    @Benchmark
+    public void arrayListItemSetting() {
+        ArrayList<Integer> list = new ArrayList<>(1000000);
+        list.add(0, 10);
+    }
+
+    @Benchmark
+    public void arrayItemRetrieval() {
+        int[] array = new int[1000000];
+        array[0] = 10;
+        int item = array[0];
+    }
+
+    @Benchmark
+    public void arrayListItemRetrieval() {
+        ArrayList<Integer> list = new ArrayList<>(1000000);
+        list.add(0, 10);
+        int item2 = list.get(0);
+    }
+
+    @Benchmark
+    public void arrayCloning() {
+        int[] array = new int[1000000];
+        int[] newArray = array.clone();
+    }
+
+    @Benchmark
+    public void arrayListCloning() {
+        ArrayList<Integer> list = new ArrayList<>(1000000);
+        ArrayList<Integer> newList = new ArrayList<>(list);
+    }
+    public static void main(String[] args) throws Exception {
+        org.openjdk.jmh.runner.Runner runner = new org.openjdk.jmh.runner.Runner(new OptionsBuilder()
+                .include(ArrayAndArrayListPerformance.class.getSimpleName())
+                .forks(1)
+                .build());
+        runner.run();
+    }
+    }
\ No newline at end of file