Added SLL.java via upload.

Linked List/SLL.java

@@ -0,0 +1,111 @@
+class SLL {
+
+    Node head;
+    private int size;
+
+    SLL () {
+        size = 0;
+    }
+
+    public class Node {
+        String data;
+        Node next;
+
+        Node(String data) {
+            this.data = data;
+            this.next = null;
+            size++;
+        }
+    }
+
+    public void addFirst(String data) {
+        Node newNode = new Node(data);
+        newNode.next = head;
+        head = newNode;
+    }
+    public void addLast(String data) {
+        Node newNode = new Node(data);
+
+        if(head == null) {
+            head = newNode;
+            return;
+        }
+
+        Node lastNode = head;
+        while(lastNode.next != null) {
+            lastNode = lastNode.next;
+        }
+
+        lastNode.next = newNode;
+    }
+
+    public void printList() {
+        Node currNode = head;
+
+        while(currNode != null) {
+            System.out.print(currNode.data+" -> ");
+            currNode = currNode.next;
+        }
+
+        System.out.println("null"); 
+
+    }
+
+    public void removeFirst() {
+        if(head == null) {
+            System.out.println("Empty List, nothing to delete");
+            return;
+        }
+
+        head = this.head.next;
+        size--;
+    }
+
+    public void removeLast() {
+        if(head == null) {
+            System.out.println("Empty List, nothing to delete");
+            return;
+        }
+
+        size--;
+        if(head.next == null) {
+            head = null;
+            return;
+        }
+
+        Node currNode = head;
+        Node lastNode = head.next;
+
+        while(lastNode.next != null) {
+            currNode = currNode.next;
+            lastNode = lastNode.next;
+        }
+
+        currNode.next = null;
+    }
+
+    public int getSize() {
+        return size;
+    }
+
+
+
+    public static void main(String args[]) {
+        SLL list = new SLL();
+        list.addLast("is");
+        list.addLast("a");
+        list.addLast("list");
+        list.printList();
+
+        list.addFirst("this");
+        list.printList();
+        System.out.println(list.getSize()); 
+
+        list.removeFirst();
+        list.printList();
+
+        list.removeLast();
+        list.printList();
+    }
+ }
+