Merge pull request #1 from javatreble/javatreble-patch-1

ArrayList Implementation of Stack

src/Chapter_24/inventory/InventoryStack.java

@@ -0,0 +1,38 @@
+package test.stacks.queues;
+
+import java.util.ArrayList;
+
+public class InventoryStack<Inventory> {
+	private ArrayList<Inventory> list = new ArrayList<>();
+
+	public int getSize() {
+		return list.size();
+	}
+
+	public Inventory peek() {
+		return list.get(getSize() - 1);
+	}
+
+	public void push(Inventory o) {
+		list.add(o);
+	}
+
+	public boolean isEmpty() {
+		return list.isEmpty();
+	}
+
+
+	public Inventory pop() {
+		Inventory o = list.get(getSize() - 1); 
+		list.remove(getSize() - 1); 
+		return o;
+	}
+
+
+	@Override
+	public String toString(){
+
+		return"Inventory Stack Implementation using ArrayList: "+list.toString();
+
+	}
+}