diff --git a/work/Test01/LinkedList.class b/work/Test01/LinkedList.class
new file mode 100644
index 0000000000000000000000000000000000000000..3f2ccb48da8e7bb88cfab8e5821d9c060ba468bf
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diff --git a/work/Test01/LinkedList.java b/work/Test01/LinkedList.java
new file mode 100644
index 0000000000000000000000000000000000000000..a34231f994a1dbfcf6619694df1aa3127baa6762
--- /dev/null
+++ b/work/Test01/LinkedList.java
@@ -0,0 +1,55 @@
+public class LinkedList <E> {
+    private Node head;
+	private Node tail;
+
+    public LinkedList() {
+      head = null;
+	  tail = null;
+    }
+
+    public void addToFront(E item) {
+        Node node = new Node(item);
+
+        if (this.head == null) {
+            this.head = node;
+			this.tail = this.head;
+        } else{
+            Node temp = head;
+            this.head = node;
+            this.head.next = temp;
+        }
+    }
+
+
+    public void addToRear(E item) {
+        Node newNode = new Node(item);
+        if (this.head == null) {
+            this.head = newNode;
+			this.tail = this.head;
+        } else {
+
+			Node temp = this.tail;
+			tail = newNode;
+			temp.next = tail;
+		/*
+			Node temp = this.head;
+            while(temp.next != null){
+              temp = temp.next;
+            }
+            temp.next = newNode;
+			tail = temp.next;
+		*/
+            
+        }
+    }
+
+    public void print() {
+        Node temp = this.head;
+        while(temp.next != null){
+            System.out.print(temp.item + " -> ");
+            temp = temp.next;
+        }
+        System.out.println(temp.item);
+    }
+}
+
diff --git a/work/Test01/Main.class b/work/Test01/Main.class
new file mode 100644
index 0000000000000000000000000000000000000000..acd5ba79cd19013b43688c117c0f04ebc61dbca7
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diff --git a/work/Test01/Main.java b/work/Test01/Main.java
new file mode 100644
index 0000000000000000000000000000000000000000..221188321937460926e3b7b499ef77b0ca60a9c4
--- /dev/null
+++ b/work/Test01/Main.java
@@ -0,0 +1,15 @@
+class Main {
+  public static void main(String[] args) {
+    LinkedList<Integer> ll = new LinkedList<Integer>();
+    ll.addToFront(1);
+    ll.addToFront(2);
+	ll.addToFront(5);
+	ll.addToFront(6);
+	ll.addToFront(7);
+    ll.addToRear(3);
+	ll.addToRear(8);
+	ll.addToRear(9);
+	ll.addToRear(10);
+    ll.print();
+  }
+}
\ No newline at end of file
diff --git a/work/Test01/Node.class b/work/Test01/Node.class
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index 0000000000000000000000000000000000000000..a383363383e004072772b0293411ecf05b408603
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diff --git a/work/Test01/Node.java b/work/Test01/Node.java
new file mode 100644
index 0000000000000000000000000000000000000000..5f1555858f49dd1b3d668202d01aaf8b55124a9a
--- /dev/null
+++ b/work/Test01/Node.java
@@ -0,0 +1,7 @@
+public class Node<E> {
+    E item;
+    Node<E> next = null;
+    Node(E item) {
+        this.item = item;
+    }
+}
\ No newline at end of file
diff --git a/work/Test02/LinkedList.class b/work/Test02/LinkedList.class
new file mode 100644
index 0000000000000000000000000000000000000000..202467e741c2844d4a03aa3bbf3435e2a306ed93
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diff --git a/work/Test02/LinkedList.java b/work/Test02/LinkedList.java
new file mode 100644
index 0000000000000000000000000000000000000000..fcf4b2107e7a6f8b7e7137a476a69fb544fa771c
--- /dev/null
+++ b/work/Test02/LinkedList.java
@@ -0,0 +1,48 @@
+public class LinkedList <E> {
+    private Node head;
+	private Node tail;
+
+    public LinkedList() {
+      head = null;
+	  tail = null;
+    }
+
+    public void addToFront(E item) {
+        Node node = new Node(item);
+
+        if (this.head == null) {
+            this.head = node;
+			this.tail = this.head;
+        } else{
+            Node temp = head;
+            this.head = node;
+            this.head.next = temp;
+			temp.pre = this.head;
+			//temp = null;
+        }
+    }
+
+    public void addToRear(E item) {
+        Node newNode = new Node(item);
+        if (this.head == null) {
+            this.head = newNode;
+			this.tail = this.head;
+        } else {
+            
+            Node temp = this.tail;
+			tail = newNode;
+			tail.pre = temp;
+			temp.next = tail;
+        }
+    }
+
+    public void print() {
+        Node temp = this.head;
+        while(temp.next != null){
+            System.out.print(temp.item + " -> ");
+            temp = temp.next;
+        }
+        System.out.println(temp.item);
+    }
+}
+
diff --git a/work/Test02/Main.class b/work/Test02/Main.class
new file mode 100644
index 0000000000000000000000000000000000000000..acd5ba79cd19013b43688c117c0f04ebc61dbca7
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diff --git a/work/Test02/Main.java b/work/Test02/Main.java
new file mode 100644
index 0000000000000000000000000000000000000000..221188321937460926e3b7b499ef77b0ca60a9c4
--- /dev/null
+++ b/work/Test02/Main.java
@@ -0,0 +1,15 @@
+class Main {
+  public static void main(String[] args) {
+    LinkedList<Integer> ll = new LinkedList<Integer>();
+    ll.addToFront(1);
+    ll.addToFront(2);
+	ll.addToFront(5);
+	ll.addToFront(6);
+	ll.addToFront(7);
+    ll.addToRear(3);
+	ll.addToRear(8);
+	ll.addToRear(9);
+	ll.addToRear(10);
+    ll.print();
+  }
+}
\ No newline at end of file
diff --git a/work/Test02/Node.class b/work/Test02/Node.class
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index 0000000000000000000000000000000000000000..d5d0e569664ec23fdd06c248a33be2f4e3f1a48a
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diff --git a/work/Test02/Node.java b/work/Test02/Node.java
new file mode 100644
index 0000000000000000000000000000000000000000..ef186f85aaa659cb3dacbb507aec4ceaaf55e633
--- /dev/null
+++ b/work/Test02/Node.java
@@ -0,0 +1,8 @@
+public class Node<E> {
+    E item;
+    Node<E> next = null;
+	Node<E> pre = null;
+    Node(E item) {
+        this.item = item;
+    }
+}
\ No newline at end of file