Drag the tree Program Plan: Import required packages. Define the main class “E39” that extends the “Application” class. The method “start ()” overrides the start method in the “Application” class. Create a tree pane Create a text field. Set the depth. Set the value of the property using “setPrefColumnCount (4)”. Set the alignment to bottom right. Create a HBox pane Add the label and text field to the pane. Set the hbox alignment to center. Create a border pane Set the pane to the center location. Set the border pane at the bottom. Create a scene and place it on the stage. Display the stage using “show ()” method. Set the width and height. Declare a static class “TreePane” that extends Pane. Declare required variables. Give the constructor for this class. Set the mouse handler Call the function “paint ()”. Function definition to set depth of the tree. Set the depth and call the function “paint()”. Give function definition for “paint ()”. Clear the pane. Check the condition “(startX == 0 && startY == 0)”. Update the values. Paint the branch by calling the function “paint_Branch ()”. Give function definition for “paint_Branch ()”. Check if the depth is greater than 0. Calculate, create and add the line to the pane. Draw the left branch of the tree. Draw the right branch of the tree. Declare a “main ()” function. Launch the application.

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Answer 1

Question

Chapter 18, Problem 18.39PE

Program Plan Intro

Drag the tree

Program Plan:

Import required packages.

Define the main class “E39” that extends the “Application” class.

The method “start ()” overrides the start method in the “Application” class.

Create a tree pane

Create a text field.

Set the depth.

Set the value of the property using “setPrefColumnCount (4)”.

Set the alignment to bottom right.

Create a HBox pane

Add the label and text field to the pane.

Set the hbox alignment to center.

Create a border pane

Set the pane to the center location.

Set the border pane at the bottom.

Create a scene and place it on the stage.

Display the stage using “show ()” method.

Set the width and height.

Declare a static class “TreePane” that extends Pane.

Declare required variables.

Give the constructor for this class.

Set the mouse handler

Call the function “paint ()”.

Function definition to set depth of the tree.

Set the depth and call the function “paint()”.

Give function definition for “paint ()”.

Clear the pane.

Check the condition “(startX == 0 && startY == 0)”.

Update the values.

Paint the branch by calling the function “paint_Branch ()”.

Give function definition for “paint_Branch ()”.

Check if the depth is greater than 0.

Calculate, create and add the line to the pane.

Draw the left branch of the tree.

Draw the right branch of the tree.

Declare a “main ()” function.

Launch the application.

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Answer 2

Question

Chapter 18, Problem 18.39PE

Program Plan Intro

Drag the tree

Program Plan:

Import required packages.

Define the main class “E39” that extends the “Application” class.

The method “start ()” overrides the start method in the “Application” class.

Create a tree pane

Create a text field.

Set the depth.

Set the value of the property using “setPrefColumnCount (4)”.

Set the alignment to bottom right.

Create a HBox pane

Add the label and text field to the pane.

Set the hbox alignment to center.

Create a border pane

Set the pane to the center location.

Set the border pane at the bottom.

Create a scene and place it on the stage.

Display the stage using “show ()” method.

Set the width and height.

Declare a static class “TreePane” that extends Pane.

Declare required variables.

Give the constructor for this class.

Set the mouse handler

Call the function “paint ()”.

Function definition to set depth of the tree.

Set the depth and call the function “paint()”.

Give function definition for “paint ()”.

Clear the pane.

Check the condition “(startX == 0 && startY == 0)”.

Update the values.

Paint the branch by calling the function “paint_Branch ()”.

Give function definition for “paint_Branch ()”.

Check if the depth is greater than 0.

Calculate, create and add the line to the pane.

Draw the left branch of the tree.

Draw the right branch of the tree.

Declare a “main ()” function.

Launch the application.

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 3

Question

Chapter 18, Problem 18.39PE

Program Plan Intro

Drag the tree

Program Plan:

Import required packages.

Define the main class “E39” that extends the “Application” class.

The method “start ()” overrides the start method in the “Application” class.

Create a tree pane

Create a text field.

Set the depth.

Set the value of the property using “setPrefColumnCount (4)”.

Set the alignment to bottom right.

Create a HBox pane

Add the label and text field to the pane.

Set the hbox alignment to center.

Create a border pane

Set the pane to the center location.

Set the border pane at the bottom.

Create a scene and place it on the stage.

Display the stage using “show ()” method.

Set the width and height.

Declare a static class “TreePane” that extends Pane.

Declare required variables.

Give the constructor for this class.

Set the mouse handler

Call the function “paint ()”.

Function definition to set depth of the tree.

Set the depth and call the function “paint()”.

Give function definition for “paint ()”.

Clear the pane.

Check the condition “(startX == 0 && startY == 0)”.

Update the values.

Paint the branch by calling the function “paint_Branch ()”.

Give function definition for “paint_Branch ()”.

Check if the depth is greater than 0.

Calculate, create and add the line to the pane.

Draw the left branch of the tree.

Draw the right branch of the tree.

Declare a “main ()” function.

Launch the application.

Expert Solution & Answer

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See solution

Answer 4

Question

Chapter 18, Problem 18.39PE

Program Plan Intro

Drag the tree

Program Plan:

Import required packages.

Define the main class “E39” that extends the “Application” class.

The method “start ()” overrides the start method in the “Application” class.

Create a tree pane

Create a text field.

Set the depth.

Set the value of the property using “setPrefColumnCount (4)”.

Set the alignment to bottom right.

Create a HBox pane

Add the label and text field to the pane.

Set the hbox alignment to center.

Create a border pane

Set the pane to the center location.

Set the border pane at the bottom.

Create a scene and place it on the stage.

Display the stage using “show ()” method.

Set the width and height.

Declare a static class “TreePane” that extends Pane.

Declare required variables.

Give the constructor for this class.

Set the mouse handler

Call the function “paint ()”.

Function definition to set depth of the tree.

Set the depth and call the function “paint()”.

Give function definition for “paint ()”.

Clear the pane.

Check the condition “(startX == 0 && startY == 0)”.

Update the values.

Paint the branch by calling the function “paint_Branch ()”.

Give function definition for “paint_Branch ()”.

Check if the depth is greater than 0.

Calculate, create and add the line to the pane.

Draw the left branch of the tree.

Draw the right branch of the tree.

Declare a “main ()” function.

Launch the application.

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 5

Chapter 18, Problem 18.39PE

Program Plan Intro

Drag the tree

Program Plan:

Import required packages.

Define the main class “E39” that extends the “Application” class.

The method “start ()” overrides the start method in the “Application” class.

Create a tree pane

Create a text field.

Set the depth.

Set the value of the property using “setPrefColumnCount (4)”.

Set the alignment to bottom right.

Create a HBox pane

Add the label and text field to the pane.

Set the hbox alignment to center.

Create a border pane

Set the pane to the center location.

Set the border pane at the bottom.

Create a scene and place it on the stage.

Display the stage using “show ()” method.

Set the width and height.

Declare a static class “TreePane” that extends Pane.

Declare required variables.

Give the constructor for this class.

Set the mouse handler

Call the function “paint ()”.

Function definition to set depth of the tree.

Set the depth and call the function “paint()”.

Give function definition for “paint ()”.

Clear the pane.

Check the condition “(startX == 0 && startY == 0)”.

Update the values.

Paint the branch by calling the function “paint_Branch ()”.

Give function definition for “paint_Branch ()”.

Check if the depth is greater than 0.

Calculate, create and add the line to the pane.

Draw the left branch of the tree.

Draw the right branch of the tree.

Declare a “main ()” function.

Launch the application.

Answer 6

Chapter 18, Problem 18.39PE

Program Plan Intro

Drag the tree

Program Plan:

Import required packages.

Define the main class “E39” that extends the “Application” class.

The method “start ()” overrides the start method in the “Application” class.

Create a tree pane

Create a text field.

Set the depth.

Set the value of the property using “setPrefColumnCount (4)”.

Set the alignment to bottom right.

Create a HBox pane

Add the label and text field to the pane.

Set the hbox alignment to center.

Create a border pane

Set the pane to the center location.

Set the border pane at the bottom.

Create a scene and place it on the stage.

Display the stage using “show ()” method.

Set the width and height.

Declare a static class “TreePane” that extends Pane.

Declare required variables.

Give the constructor for this class.

Set the mouse handler

Call the function “paint ()”.

Function definition to set depth of the tree.

Set the depth and call the function “paint()”.

Give function definition for “paint ()”.

Clear the pane.

Check the condition “(startX == 0 && startY == 0)”.

Update the values.

Paint the branch by calling the function “paint_Branch ()”.

Give function definition for “paint_Branch ()”.

Check if the depth is greater than 0.

Calculate, create and add the line to the pane.

Draw the left branch of the tree.

Draw the right branch of the tree.

Declare a “main ()” function.

Launch the application.

Answer 7

Chapter 18, Problem 18.39PE

Program Plan Intro

Drag the tree

Program Plan:

Import required packages.

Define the main class “E39” that extends the “Application” class.

The method “start ()” overrides the start method in the “Application” class.

Create a tree pane

Create a text field.

Set the depth.

Set the value of the property using “setPrefColumnCount (4)”.

Set the alignment to bottom right.

Create a HBox pane

Add the label and text field to the pane.

Set the hbox alignment to center.

Create a border pane

Set the pane to the center location.

Set the border pane at the bottom.

Create a scene and place it on the stage.

Display the stage using “show ()” method.

Set the width and height.

Declare a static class “TreePane” that extends Pane.

Declare required variables.

Give the constructor for this class.

Set the mouse handler

Call the function “paint ()”.

Function definition to set depth of the tree.

Set the depth and call the function “paint()”.

Give function definition for “paint ()”.

Clear the pane.

Check the condition “(startX == 0 && startY == 0)”.

Update the values.

Paint the branch by calling the function “paint_Branch ()”.

Give function definition for “paint_Branch ()”.

Check if the depth is greater than 0.

Calculate, create and add the line to the pane.

Draw the left branch of the tree.

Draw the right branch of the tree.

Declare a “main ()” function.

Launch the application.

Answer 8

Expert Solution & Answer

Answer 9

Expert Solution & Answer

Answer 10

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Answer 11

Ch. 18.2 - What is a recursive method? What is an infinite...Ch. 18.2 - Prob. 18.2.2CP Ch. 18.2 - Show the output of the following programs and...Ch. 18.2 - Prob. 18.2.4CP Ch. 18.2 - Prob. 18.2.5CP Ch. 18.2 - Write a recursive mathematical definition for...Ch. 18.3 - Prob. 18.3.1CP Ch. 18.3 - What is wrong in the following methods?Ch. 18.3 - Prob. 18.3.3CP Ch. 18.4 - Describe the characteristics of recursive methods.

Solution Summary: The author explains how to draw a recursive tree, based on the figure.

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Chapter 18 Solutions