diff --git a/ArrayListDemo.java b/ArrayListDemo.java
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+// 11 write a java program to demonstrate Array List
+import java.util.ArrayList;
+public class ArrayListDemo{
+  public static void main(String[] args){
+    ArrayList<String> arrayList = new ArrayList<>();
+    arrayList.add("Element 1");
+    arrayList.add("Element 2");
+    arrayList.add("Element 3");
+    System.out.println("Element at index 0: " + arrayList.get(0));
+    System.out.println("Element at index 1: " + arrayList.get(1));
+    System.out.println("Element at index 2: " + arrayList.get(2));
+  }
+}
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