ClassicThunder

import org.apache.spark.sql.SparkSession
import org.apache.spark.sql.expressions.Window
import org.apache.spark.sql.functions._

import org.apache.log4j.{Level, Logger}

// // build.sbt
// name := "sparktest"
//
// version := "0.1"

ClassicThunder

OOP Crash Course

OOP

Object Oriented Programming is all about encapsulating moving parts into self-sustainable objects.

Self-sustainable means they contain both logic and the data that logic operates on.

There are 4 main concepts of OOP

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OOP Exercise

Exercise

For this assignment you will apply OO principles to represent an email message.

How emails work:

• All emails must have the following features
• Recipients

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public void calcD(double d, double h, String n, String t, double r, int a, List i, List ae, List m) { double d2 = 0;

switch (t) {
    case "m":
        d2 = d * r;
    case "ps":
        d2 = d * (a * .05);
        if (i.contains("sh"))

if (rand.nextInt(10) <= 4) d2 += 20;

ClassicThunder

Instructions

Give the class 30m to find as many code smells as possible.

LineItem

package com.nq.util;
 

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#Code Smells

Slides

• http://blog.codinghorror.com/code-smells/
• https://sourcemaking.com/refactoring/bad-smells-in-code
• http://mikamantyla.eu/BadCodeSmellsTaxonomy.html

####Bloaters

• Long Methods

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public interface IDebitable
{
  public double GetBallance();
  public void Debit(double amount);
  public void Credit(double amount)
}

debitTest()
{
  IDebitable atm = new ATMMachine();

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Texture2D file;
RenderTarget2D result;

using (var titleStream = TitleContainer.OpenStream(loc)) {
    file = Texture2D.FromStream(graphicsDevice, titleStream);
}

//Setup a render target to hold our final texture which will have premulitplied alpha values
result = new RenderTarget2D(graphicsDevice, file.Width, file.Height);

ClassicThunder

using System;
using System.Runtime.InteropServices;

namespace Microsoft.Xna.Framework.Input
{

    public class CharacterEventArgs : EventArgs
    {

        private readonly char character;

ClassicThunder

###Generating a screenshot

- (UIImage *)screenshot
{
    CGSize imageSize = CGSizeZero;
    
    imageSize = CGSizeMake([UIScreen mainScreen].bounds.size.width, [UIScreen mainScreen].bounds.size.height);
    
    UIGraphicsBeginImageContextWithOptions(imageSize, NO, 0);