Merge branch 'master' into task1

src/CustomLinkedList.java

@@ -0,0 +1,100 @@
+import java.util.Objects;
+    public class CustomLinkedList<E>{
+        private Node head;
+        private Node last;
+        private int size;
+
+        private class Node {
+            E value;
+            Node next;
+            Node prev;
+
+            public Node(E value, Node next, Node prev) {
+                this.value = value;
+                this.next = next;
+                this.prev = prev;
+            }
+
+            public Node(E value) {
+                this.value = value;
+            }
+        }
+
+
+        public void add(E element) {
+            if (Objects.isNull(head)) {
+                head = new Node(element);
+                last = head;
+                size++;
+                return;
+            }
+
+            last.next = new Node(element);
+            last.next.prev = last;
+            last = last.next;
+
+            size++;
+        }
+
+
+        /** Bo'lganicha bajardimda **/
+        public void remove(E element){
+            Node current = head;
+            if(current.value.equals(element)){
+                head = current.next;
+                return;
+            }
+
+            while (current != null) {
+                if (current.value.equals(element)) {
+                        current.prev.next = current.next;
+                        size--;
+                        return;
+                    }
+                if( current.next == null){
+                    current.next.prev = null;
+                    last = current.prev;
+                    return;
+                }
+                current = current.next;
+                }
+        }
+
+
+
+        /**DIQQAT !!! bu yerda aynan nechinchi index daligiga qaraganman demoqchimanki 0 chi index yo'q deb olganman
+         * va sanashni 1 chi indexdan boshlaganman.
+          */
+        public E get(int index){
+            --index;
+            if (index < 0 || index >= size) {
+                throw new IndexOutOfBoundsException("Index " + index + " is out of bounds for length " + size);
+            }
+            Node next = head.next;
+
+            if(index == 0){
+                return head.value;
+            }
+
+            for (int i = 1; i < index; i++) {
+                next = next.next;
+            }
+
+            return next.value;
+        }
+
+        public boolean contains(E element){
+            Node current = head;
+            while(current != null){
+                if(current.value.equals(element)){
+                    return true;
+                }
+                current = current.next;
+            }
+            return false;
+        }
+
+
+    }
+
+

src/Main.java

@@ -1,6 +1,14 @@
+
 public class Main {
     public static void main(String[] args) {
-
-        System.out.println("Hello world !!!");
+        CustomLinkedList<Integer> test = new CustomLinkedList<>();
+        test.add(1);
+        test.add(2);
+        test.add(3);
+        test.add(8);
+        test.add(5);
+        System.out.println(test.get(2));
+        test.remove(1);
+        System.out.println(test.get(1));
     }
 }