List Code added in project

src/.gitignore

@@ -8,3 +8,4 @@ javaTraining.iml
 ../out/production/javaTraining/ExceptionHandling/
 ../out/production/javaTraining/Loops/
 ../out/production/javaTraining/Strings/
+/src/out
\ No newline at end of file

src/ArrayList/CoustomArrayList.java → src/ListInterface/ArrayList/CoustomArrayList.java

-package ArrayList;
+package ListInterface.ArrayList;
 
 import java.util.ArrayList;
-import java.util.Collection;
 import java.util.Collections;
 
 public class CoustomArrayList { // It is a data structure it use, to  store objects and size is not fixed like array.

src/ArrayList/Main.java → src/ListInterface/ArrayList/Main.java

-package ArrayList;
+package ListInterface.ArrayList;
+
+import ListInterface.ArrayList.CoustomArrayList;
 
 public class Main {
     public static void main(String[] args) {

src/ListInterface/LinkedList/CoustomLinkdList.java

+package ListInterface.LinkedList;
+import java.util.*;
+
+public class CoustomLinkdList {
+    LinkedList<Integer> obj = new LinkedList<>();
+
+    public CoustomLinkdList() {
+        System.out.println("Object is Created!");
+    }
+
+    public void LinkdList() {
+        // Adding in LinkedList
+        obj.add(3);
+        obj.add(4);
+        System.out.println("LinkedList: " + obj);
+
+        // Adding at a particular index
+        obj.add(1, 7);
+        obj.add(2, 1);
+        System.out.println("LinkedList after adding at specific index: " + obj);
+
+        // Adding elements at the first and last position
+        obj.addFirst(10);
+        obj.addLast(20);
+        System.out.println("LinkedList after adding first and last: " + obj);
+
+        // Removing elements
+        obj.remove(2);  // Removes element at index 2
+        System.out.println("LinkedList after removal at index 2: " + obj);
+
+        obj.removeFirst();  // Removes the first element
+        obj.removeLast();   // Removes the last element
+        System.out.println("LinkedList after removing first and last: " + obj);
+
+        // Accessing elements
+        int firstElement = obj.getFirst();
+        int lastElement = obj.getLast();
+        System.out.println("First element: " + firstElement);
+        System.out.println("Last element: " + lastElement);
+        System.out.println("Element at index 1: " + obj.get(1));
+
+        // Checking if the list contains an element
+        boolean contains7 = obj.contains(7);
+        System.out.println("Contains 7? " + contains7);
+
+        // Getting the size of the list
+        int size = obj.size();
+        System.out.println("Size of LinkedList: " + size);
+
+        // Clearing the list
+        obj.clear();
+        System.out.println("LinkedList after clearing: " + obj);
+
+        // Re-adding elements after clearing
+        obj.add(50);
+        obj.add(60);
+        System.out.println("LinkedList after re-adding elements: " + obj);
+    }
+}

src/ListInterface/LinkedList/Main.java

+package ListInterface.LinkedList;
+
+public class Main {
+    public static void main(String[] args) {
+
+        CoustomLinkdList obj = new CoustomLinkdList();
+
+        obj.LinkdList();
+    }
+}