diff --git a/data_structures/Stacks/Stacks.class b/data_structures/Stacks/Stacks.class
new file mode 100644
index 000000000..260579a9d
Binary files /dev/null and b/data_structures/Stacks/Stacks.class differ
diff --git a/data_structures/Stacks/Stacks.java b/data_structures/Stacks/Stacks.java
index 4e2b08545..215856317 100644
--- a/data_structures/Stacks/Stacks.java
+++ b/data_structures/Stacks/Stacks.java
@@ -3,13 +3,13 @@ import java.util.ArrayList;
 /**
  * This class implements a Stack using two different implementations.
  * Stack is used with a regular array and Stack2 uses an ArrayList.
- * 
+ *
  * A stack is exactly what it sounds like. An element gets added to the top of
  * the stack and only the element on the top may be removed. This is an example
  * of an array implementation of a Stack. So an element can only be added/removed
  * from the end of the array. In theory stack have no fixed size, but with an
  * array implementation it does.
- * 
+ *
  * @author Unknown
  *
  */
@@ -23,7 +23,7 @@ class Stack{
 
 	/**
 	 * Constructor
-	 * 
+	 *
 	 * @param size Size of the Stack
 	 */
 	public Stack(int size){
@@ -34,7 +34,7 @@ class Stack{
 
 	/**
 	 * Adds an element to the top of the stack
-	 * 
+	 *
 	 * @param value The element added
 	 */
 	public void push(int value){
@@ -42,13 +42,13 @@ class Stack{
 			top++;
 			stackArray[top] = value;
 		}else{
-			System.out.prinln("The stack is full, can't insert value");	
+			System.out.println("The stack is full, can't insert value");
 		}
 	}
 
 	/**
 	 * Removes the top element of the stack and returns the value you've removed
-	 * 
+	 *
 	 * @return value popped off the Stack
 	 */
 	public int pop(){
@@ -62,7 +62,7 @@ class Stack{
 
 	/**
 	 * Returns the element at the top of the stack
-	 * 
+	 *
 	 * @return element at the top of the stack
 	 */
 	public int peek(){
@@ -76,7 +76,7 @@ class Stack{
 
 	/**
 	 * Returns true if the stack is empty
-	 * 
+	 *
 	 * @return true if the stack is empty
 	 */
 	public boolean isEmpty(){
@@ -85,16 +85,16 @@ class Stack{
 
 	/**
 	 * Returns true if the stack is full
-	 * 
+	 *
 	 * @return true if the stack is full
 	 */
 	public boolean isFull(){
 		return(top+1 == maxSize);
 	}
-	
+
 	/**
 	 * Deletes everything in the Stack
-	 * 
+	 *
 	 * Doesn't delete elements in the array
 	 * but if you call push method after calling
 	 * makeEmpty it will overwrite previous
@@ -108,41 +108,41 @@ class Stack{
 /**
  * This is an ArrayList Implementation of stack, Where size is not
  * a problem we can extend the stack as much as we want.
- * 
+ *
  * @author Unknown
  *
  */
 class Stack2{
 		/** ArrayList representation of the stack */
 		ArrayList<Integer> stackList;
-		
+
 		/**
 		 * Constructor
 		 */
 		Stack2(){
 			stackList=new ArrayList<>();
 		}
-		
+
 		/**
 		 * Adds value to the end of list which
 		 * is the top for stack
-		 * 
+		 *
 		 * @param value value to be added
 		 */
 		void push(int value){
 			stackList.add(value);
 		}
-		
+
 		/**
 		 * Pops last element of list which is indeed
 		 * the top for Stack
-		 * 
+		 *
 		 * @return Element popped
 		 */
 		int pop(){
-			
+
 			if(!isEmpty()){ // checks for an empty Stack
-				
+
 				int popValue=stackList.get(stackList.size()-1);
 				stackList.remove(stackList.size()-1);  //removes the poped element from the list
 				return popValue;
@@ -151,25 +151,25 @@ class Stack2{
 				System.out.print("The stack is already empty  ");
 				return -1;
 			}
-			
+
 		}
-		
+
 		/**
 		 * Checks for empty Stack
-		 * 
+		 *
 		 * @return true if stack is empty
 		 */
 		boolean isEmpty(){
 			if(stackList.isEmpty())
 				return true;
-			
+
 			else return false;
-			
+
 		}
-		
+
 		/**
 		 * Top element of stack
-		 * 
+		 *
 		 * @return top element of stack
 		 */
 		int peek(){
@@ -179,14 +179,14 @@ class Stack2{
 
 /**
  * This class implements the Stack and Stack2 created above
- * 
+ *
  * @author Unknown
  *
  */
 public class Stacks{
 	/**
 	 * Main method
-	 * 
+	 *
 	 * @param args Command line arguments
 	 */
 	public static void main(String args[]){
@@ -196,21 +196,21 @@ public class Stacks{
  		myStack.push(8);
   		myStack.push(2);
   		myStack.push(9);
-  
+
 		System.out.println("*********************Stack Array Implementation*********************");
   		System.out.println(myStack.isEmpty()); //will print false
   		System.out.println(myStack.isFull()); //will print true
   		System.out.println(myStack.peek()); //will print 9
   		System.out.println(myStack.pop()); //will print 9
   		System.out.println(myStack.peek()); // will print 2
-		
+
 		Stack2 myStack2 = new Stack2(); //Declare a stack of maximum size 4
   		//Populate the stack
  		myStack2.push(5);
 		myStack2.push(8);
  		myStack2.push(2);
  		myStack2.push(9);
- 
+
  		System.out.println("*********************Stack List Implementation*********************");
  		System.out.println(myStack2.isEmpty()); //will print false
  		System.out.println(myStack2.peek()); //will print 9