U4Ch1L8_ Level2_ Conditionals _ Make  Purpose: Students will apply their skills in order to rewrite Conditional Statements.  Activity: Build This App! Based on the Skills You Learned!  Step #1: Open Level 1 and Run the Program!  Journal: Answer the following Questions:  Look at the App…write down the necessary components that make up the interface of this App?

Step #2: Create a Flowchart of How This Program Will Run.

• Ask yourself what this App does?  It sells you a ticket for a price.
• Not only is there a Base Price ($10), but there are different prices based on a number of conditions, such as Age, Day of the Week and a Discount.  
• Create a Flowchart, using  geometric shapes, arrows, and text, to show how your program will work.   (Remember, A flowchart is not the actual Program! A Flowchart is just a visual as to how the program should flow.) My Example.

Step #3: Open Level2! This App does not work! It has no code. You now need to write the program based on everything you have learned so far.      

• Look At Previous Programs
• All the skills required to build this App come from Apps you have already built. Which previous lesson (Levels), did you learn the skills necessary to build this App?? Note: Look back at the previous lessons to see where you have programmed parts of Apps that you will have to recreate here. When you find something similar, copy, paste and edit the lines of code to match this new App that you are building!! Here are some of the Apps you have previously built. Do you notice any similarities? Open the previous App you built, copy the line of code that is similar to the one in this program, then paste and edit it so that it will work in this program.

Lemon Head U4Ch1L6	MindEase U4Ch1L7	VeloCity U4Ch1L7	Tix Finder U4Ch1L7

• Begin writing your program in Level 2!
• Go copy the lines of code from the programs you have previously written (mine are mentioned above) and paste them into this program and edit them so they will work in this program.
• Here is the order in which I entered my code:

  1. Create Variables

  • var day, age, price, discountCode, ticketText
    

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  2. onEvent/button/click

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  3. Update Variables

  • day = getText("enter the name of this dropdown");
  • age = getNumber("enter the name of this dropdown");
  • discountCode = getText("enter the name of this form field");

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  4. Begin ‘else if’ statements  
  Begin writing this section by entering the Most Specific Rates and place it in an "if" statement, and end with the most Basic Rate of $10 in an "else" statement: 
  if
  else if
  else if
  else  
  
  

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   4a. In this program the Most Specific Rate is the Discount Code Entry

  • If the user enters the discount code FREEFRIDAY and they want a ticket for  Friday, then the price is zero. 
  • This first statement I started with an "if "statement.   I wrote this as: "if" discountCode equals FREEFRIDAY AND day equals Friday, then price is ‘0’.
  • I searched the Programs shown above and discovered a similar line of code on line 18 of the Lemon Squeeze program:
    •  if((userName == "Lemonhead") && (password == "lemon123"))
      price ("gameScreen");
  • Here is the structure that you should use for your App:
    •  if((var == "discount code") && (var == "the day")){
      var = value;   
      

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  4b. Next write the Code to Check if it's a Weekend. Everyone pays full price on weekends.

  • This second statement I started with an ‘else-if’ statement. I wrote this as: ‘else-if’ ‘day ‘equals ‘Saturday’ OR ‘day’ equals ‘Sunday’, then the price equals ‘10’. Hint: Just use the fomat of the code you developed for the previous line of code and edit it! Also, this line of code uses an OR statement ( || ), where the code above used an AND statement (&&).   
    

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  4c. Next write the Code to Check if it's a Child. You've already checked if it's a weekday so there's no need to check the day. Just write the code to check if they're a child.

  • I wrote this as: else if ‘age’ is less than or equal to ‘18’ then the ‘price’ should be ‘5.’
  •  I searched the Programs shown above and discovered a similar line of code on line 18 of the Lemon Squeeze program: if((userName == "Lemonhead") && (password == "lemon123")) price ("gameScreen");
  •  Here is the structure that you should use for your App:
    } else if (var <= value){
    var = value;
    
    

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  4d. Finally, if none of the conditions above apply, then the final section ends with an ‘else’ statement:

  • I searched the Programs shown above and discovered a similar line of code on line 44 of the Mind Ease :
     } else (stress >= 4) {
    stressLevel = "Medium";
    
    
  • Here is the structure that you should use for your App:
    } else (var <=> value) {
    { var <=> value;
    }

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  4c. Now let’s generate the Message to be seen on the ‘Display’  - I am giving it to you!

  • I wrote this as: ticketText = “Day:  “  +  day  +  “\nAge:  “  +  age. +  “\nPrice: $”  +  price ;
• 

You are Done…Test It!