From b668e2bfb1130fe13d4a310bfab419217a574cbd Mon Sep 17 00:00:00 2001
From: Danpatpang <puri8467@gmail.com>
Date: Fri, 25 May 2018 00:20:16 +0900
Subject: [PATCH 1/2] Update Stacks.java

---
 Data Structures/Stacks/Stacks.java | 32 +++++++++++++++++++-----------
 1 file changed, 20 insertions(+), 12 deletions(-)

diff --git a/Data Structures/Stacks/Stacks.java b/Data Structures/Stacks/Stacks.java
index 2861ef5c17e8..cd338fa3edf0 100644
--- a/Data Structures/Stacks/Stacks.java	
+++ b/Data Structures/Stacks/Stacks.java	
@@ -54,13 +54,14 @@ public void push(int value){
 	 */
 	public int pop(){
 		if(!isEmpty()){ //Checks for an empty stack
-			return stackArray[top--];
-		}
-
-		if(top < maxSize/4){
-			resize(maxSize/2);
-			return pop();// don't forget pop after resizing
-		}
+            		if(top < maxSize/4){
+                		resize(maxSize/2);
+                		return pop();// don't forget pop after resizing
+            	}
+            	int data = stackArray[top];
+            	stackArray[top--] = 0;
+            	return data;
+        }
 		else{
 			System.out.println("The stack is already empty");
 			return -1;
@@ -86,11 +87,18 @@ private void resize(int newSize){
                 int[] transferArray = new int[newSize];
 
 		//for(int i = 0; i < stackArray.length(); i++){ the length isn't a method .
-                for(int i = 0; i < stackArray.length; i++){
-			transferArray[i] = stackArray[i];
-			stackArray = transferArray;
-		}
-		maxSize = newSize;
+                if(newSize > maxSize){
+            		for(int i = 0; i < stackArray.length; i++){
+                		transferArray[i] = stackArray[i];
+            		}
+        	}
+        	else{
+           		for(int i = 0; i < transferArray.length; i++){
+                		transferArray[i] = stackArray[i];
+           		}
+        	}
+        	stackArray = transferArray;
+        	maxSize = newSize;
 	}
 
 	/**

From a6b6fa4f5fefc4422665c9850db66f2bdb4841f1 Mon Sep 17 00:00:00 2001
From: Danpatpang <puri8467@gmail.com>
Date: Sun, 27 May 2018 03:10:48 +0900
Subject: [PATCH 2/2] Update StackOfLinkedList.java

---
 Data Structures/Stacks/StackOfLinkedList.java | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/Data Structures/Stacks/StackOfLinkedList.java b/Data Structures/Stacks/StackOfLinkedList.java
index 8903e52f0e72..3db8535c8ad6 100644
--- a/Data Structures/Stacks/StackOfLinkedList.java	
+++ b/Data Structures/Stacks/StackOfLinkedList.java	
@@ -56,8 +56,7 @@ public void push(int x) {
             head = n;
         }
         else {
-            Node temp = head;
-            n.next = temp;
+            n.next = head;
             head = n;
         }
         size++;