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Author: EmperorMurfy

Swift Practice + Warmups/New Wave Stock.playground/Contents.swift

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+// Project : New Wave Stock [No Inputs]
+// Written by: Mason Z
+// Date: Sept 20, 2024
+// Description: Non-input version. Original. - Kinda Rudimetary: Basic Demonstration of Dictionary's in Swift
+
+/* TASK
+1 - Add a product – The user will enter a product name and quantity. Make sure that they don’t accidently overwrite a product that is already in the database.
+ 
+2 -  Add a quantity to an existing product – The user will enter a product name and quantity. This quantity should be added to the existing stock. The user should be notified if they enter an invalid product name.
+ 
+3 - Remove a quantity from an existing product – The user will enter a product name and quantity. This quantity should be subtracted from the existing stock. The user should be notified if they enter an invalid product name or an invalid quantity.
+ 
+4 - Total number of items in stock – Print the total quantity of items that New Wave Computers™ has in stock.
+ 
+5 - List all items that are in stock – Print a nicely formatted table of all items currently in stock, sorted from items that have the highest quantity down to items that have the lowest quantity.
+*/
+
+import Foundation
+
+// variables
+var stock = ["hard drives": 502, "software": 7, "wPhones": 24, "wPens": 700532]
+
+
+// because input on xcode doesn't work, this is the version where input is disabled and inputs are substituded with consts
+
+// menu - defunct
+print("************************************************************")
+print("welcome to new wave computer systems - inputs off")
+print("")
+
+
+
+// #1
+print("1 - Add Product")
+print("For this purpose, we will add wTablets with a quantity of 2, as it is a new product")
+print("")
+
+if let product = stock["wTablets"] {
+    print("ERROR: ALREADY EXISTS. CANNOT EXISTING ITEM AS NEW ITEM TO DATABASE") // in this casse, this error will not occur
+} else {
+    stock["wTablets"] = 2
+}
+
+
+
+// #2
+print("2 - Add a Quantity to an Existing Product")
+print("For This Purpose, 8 will added to hard drives. It shall equal 510 after.")
+print("")
+
+if let productQuantity = stock["hard drives"] {
+    stock["hard drives"] = productQuantity + 8
+} else {
+    print("that product doesn't exist") // in this case, this error will not occur
+}
+
+
+
+
+// #3
+print("3 - Remove a Quantity to an Existing Product")
+print("For This Purpose, 5 will removed from software. It shall equal 2 after.")
+print("")
+
+if let productQuantity = stock["software"] {
+    stock["software"] = productQuantity - 5
+} else {
+    print("that product doesn't exist") // in this casse, this error will not occur
+}
+
+
+
+// #4
+var totalStock = 0
+for quantity in stock.values {
+    totalStock+=quantity
+}
+print("4 - Total # of Items in Stock = \(totalStock)")
+print("")
+
+// #5
+print("5 - All Items in Stock Report")
+print("")
+
+print ("Product          Quantity")
+for (product, quantity) in stock {
+    print ("\(product)      \(quantity)")
+}
+print("")
+
+print("************************************************************")
+
+
+
+

Swift Practice + Warmups/New Wave Stock.playground/contents.xcplayground

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+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<playground version='5.0' target-platform='ios' buildActiveScheme='true' importAppTypes='true'>
+    <timeline fileName='timeline.xctimeline'/>
+</playground>