convert to maven project and make unit test

pom.xml

@@ -0,0 +1,54 @@
+<?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/maven-v4_0_0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <groupId>io.github.kaoutharelbakouri</groupId>
+    <artifactId>kaoutharelbakouri-implement-arraylist-from-scratch</artifactId>
+    <version>1.0.0-SNAPSHOT</version>
+    <packaging>jar</packaging>
+    <name>${project.groupId}:${project.artifactId}</name>
+    <description>Java Code to Implement an ArrayList From Scratch</description>
+
+    <properties>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <maven.compiler.source>1.8</maven.compiler.source>
+        <maven.compiler.target>1.8</maven.compiler.target>
+    </properties>
+
+    <build>
+        <plugins>
+            <plugin>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>3.8.0</version>
+                <configuration>
+                    <source>${maven.compiler.source}</source>
+                    <target>${maven.compiler.target}</target>
+                </configuration>
+            </plugin>
+            <plugin>
+                <artifactId>maven-surefire-plugin</artifactId>
+                <version>2.22.2</version>
+            </plugin>
+            <plugin>
+                <artifactId>maven-failsafe-plugin</artifactId>
+                <version>2.22.2</version>
+            </plugin>
+        </plugins>
+    </build>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter</artifactId>
+            <version>5.8.2</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.junit.vintage</groupId>
+            <artifactId>junit-vintage-engine</artifactId>
+            <version>5.8.2</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+</project>

src/main/java/io/github/kaoutharelbakouri/Paquet.java

@@ -0,0 +1,97 @@
+package io.github.kaoutharelbakouri;
+
+import java.util.Arrays;
+import java.util.Iterator;
+import java.util.NoSuchElementException;
+
+public class Paquet<T> implements Iterable<T> {
+    private int size;
+    private T[] tab;
+
+    public Iterator<T> iterator() {
+        return new Iterator<T>() {
+            int currentIndex = 0;
+
+            @Override
+            public boolean hasNext() {
+                return currentIndex < size;
+            }
+
+            @Override
+            public T next() {
+                if (!hasNext()) throw new NoSuchElementException();
+                return tab[currentIndex++];
+            }
+
+            @Override
+            public void remove() {
+                Paquet.this.remove(--currentIndex);
+            }
+        };
+    }
+
+    @SuppressWarnings("unchecked")
+    public Paquet() {
+        size = 0;
+        tab = (T[]) new Object[10];
+    }
+
+    public void add(T e) {
+        if (size == tab.length) {
+            tab = Arrays.copyOf(tab, size * 2 + 1);
+        }
+        tab[size++] = e;
+    }
+
+    public void add(int index, T item) {
+        checkArrayIndexOutOfBounds(index);
+        if (size == tab.length) {
+            tab = Arrays.copyOf(tab, size * 2 + 1);
+        }
+        for (int i = size; i > index; i--) {
+            tab[i] = tab[i - 1];
+        }
+        tab[index] = item;
+        size++;
+    }
+
+    public void remove(int index) {
+        checkArrayIndexOutOfBounds(index);
+        for (int i = index; i < size - 1; i++) {
+            tab[i] = tab[i + 1];
+        }
+        size--;
+    }
+
+    public int getSize() {
+        return size;
+    }
+
+    public T get(int index) {
+        checkArrayIndexOutOfBounds(index);
+        return tab[index];
+    }
+
+    public String toString() {
+        StringBuilder s = new StringBuilder("Les elements de notre Collection sont :");
+        for (T t : this) {
+            s.append(" ").append(t);
+        }
+        return s.toString();
+    }
+
+    public boolean isEmpty() {
+        return size == 0;
+    }
+
+    public void set(int index, T newVal) {
+        checkArrayIndexOutOfBounds(index);
+        tab[index] = newVal;
+    }
+
+    private void checkArrayIndexOutOfBounds(int index) throws ArrayIndexOutOfBoundsException {
+        if (index < 0 || index >= size) {
+            throw new ArrayIndexOutOfBoundsException(index + " is out of Bounds");
+        }
+    }
+}