ineInfoGUI: the main JavaFX program The program allows the user to click two points and create a line. There are three buttons to allow the user to request information about the line: the distance...

ineInfoGUI: the main JavaFX program

• The program allows the user to click two points and create a line.


• There are three buttons to allow the user to request information about the line:
  
  
  • the distance between the starting and ending points of the line
  
  
  • the midpoint of the line
  
  
  • whether or not the line is horizontal or vertical
  
  
  
  


• When you run this program as provided, you should be able to create lines.


• The buttons have no functionality- this is what you will add.

LineInfoDisplayer: a functional interface with an enum and static factory method

• The functional interface has one method: getInfo.
  
  
  • Classes that implement this interface implement the getInfo method.
  
  
  • The getInfo method takes in a line and returns a String of information about that line.
  
  
  • In a pre-Java 8 setup, you could imagine writing three classes to implement this interface: DistanceDisplayer, MidpointDisplayer, VertHorzDisplayer.
  
  
  
  


• The interface declares an enum to describe the three types of line information we're using in this program.


• The interface contains a static factory method to create an object of type LineInfoDisplayer based on the type passed in as a parameter.

As stated in theSyllabus, homework that do not compile will receive 0 points. Note that compilerwarningsare okay, but compilererrorsthat mean you cannot compile your code will result in a score of 0.

Requirements

1. Review the files provided.
   
   
   • Make sure you have a good understanding of the methods and variables in the provided code.
   
   
   • Post any questions to the discussion board.
   
   
   
   


2. 
   (45 points)Complete the LineInfoDisplayer interface.
   
   
   • Implement the factory method to return three different possible LineInfoDisplayer objects based on the requested type passed in as a parameter.
   
   
   • Requirement: use lambdas.
   
   
   • Optional suggestion: use a switch statement.
   
   
   
   


3. 
   (35 points)Complete the LineInfoGUI class.
   
   
   • Write code to set the action of the three buttons.
   
   
   • For the action, assign a value to the lineInfoDisplayer variable using the static factory method you wrote in LineInfoDisplayer.
   
   
   • Update the appropriate Text variable to display the information.
   
   
   • Requirement: use lambdas.
   
   
   
   


4. 
   (10 points)Add a time stamp to the LineInfoGUI class.
   
   
   
   
   • When the user completes a line, display the time in a human-friendly, readable format.
   
   
   • Update the variable timeText to display the information.
   
   
   • I do not list where this update should occur- that is part of what you should figure out.
   
   
   
   


5. 
   (10 points)Style: Your class should follow Java coding conventions and best practices. Follow naming conventions for variables, classes, and methods. Reduce duplicated code.