Java: An Introduction to Problem Solving and Programming (8th Edition)
8th Edition
ISBN: 9780134462035
Author: Walter Savitch
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 7.6, Problem 34STQ
Program Plan Intro
“strokePolygon” method:
- This method is one method of “GraphicsContext”.
- User can draw any polygon using “strokePolygon” method.
- Syntax of this method is
Objectname_of_GraphicsContext.strokePolygon(Array_of_xValues, Array_of_yValues, number_of_points)
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Write a program that will use WheelsFX shapes to create a Car.
Car must contain 6 parts (wheels, body, etc.) :
Car must use 3 different kinds of shapes (Rectangle, Ellipse, etc.)
Create a class for regular pyramid and call it RegularPyramid. The RegularPyramid objects should be constructed by providing number of sides, side length, and the height length only.Your RegularPyramid should have the following methods:Method slantHeight for calculation of slant heightMethod baseCircumradius for calculation of the circumradius of the base polygon.Method basePerimeter for calculation of the base perimeter.Method baseArea for calculation of the base area.Method lateralArea for calculation of the lateral area.Method totalSurfaceArea for calculation of all surface areas.Method baseArea for calculation of the base area.Method volume for calculation of the regular pyramid volume.
Write a program that asks the user
for two points (x, y) and use them
to create two Point2D objects.
Then, use the methods in the
Point2D class to determine and
display the distance between the
two points and the midpoint
between the two points.
Chapter 7 Solutions
Java: An Introduction to Problem Solving and Programming (8th Edition)
Ch. 7.1 - What output will be produced by the following...Ch. 7.1 - What output will be produced by the following...Ch. 7.1 - What output will be produced by the following...Ch. 7.1 - Consider the following array: int [] a = new...Ch. 7.1 - What is wrong with the following code to...Ch. 7.1 - Write a complete Java program that reads 20 values...Ch. 7.2 - Write some Java code that will declare an array...Ch. 7.2 - Rewrite the method displayResults of the program...Ch. 7.2 - What output will be produced by the following...Ch. 7.2 - Give the definition of a static method called...
Ch. 7.2 - Give the definition of a static method called...Ch. 7.2 - Prob. 12STQCh. 7.2 - The following method compiles and executes but...Ch. 7.2 - Suppose that we add the following method to the...Ch. 7.3 - Prob. 15STQCh. 7.3 - Replace the last loop in Listing 7.8 with a loop...Ch. 7.3 - Suppose a is an array of values of type double....Ch. 7.3 - Suppose a is an array of values of type double...Ch. 7.3 - Prob. 19STQCh. 7.3 - Consider the partially filled array a from...Ch. 7.3 - Repeat the previous question, but this time assume...Ch. 7.3 - Write an accessor method getEntryArray for the...Ch. 7.4 - Prob. 23STQCh. 7.4 - Write the invocation of the method selectionSort...Ch. 7.4 - How would you need to change the method...Ch. 7.4 - How would you need to change the method...Ch. 7.4 - Consider an array b of int values in which a value...Ch. 7.5 - What output is produced by the following code?...Ch. 7.5 - Revise the method showTable in Listing 7.13 so...Ch. 7.5 - Write code that will fill the following array a...Ch. 7.5 - Write a void method called display such that the...Ch. 7.6 - Prob. 33STQCh. 7.6 - Prob. 34STQCh. 7 - Write a program in a class NumberAboveAverage that...Ch. 7 - Write a program in a class CountFamiles that...Ch. 7 - Write a program in a class CountPoor that counts...Ch. 7 - Write a program in a class FlowerCounter that...Ch. 7 - Write a program in a class characterFrequency that...Ch. 7 - Create a class Ledger that will record the sales...Ch. 7 - Define the following methods for the class Ledger,...Ch. 7 - Write a static method isStrictlyIncreasing (double...Ch. 7 - Write a static method removeDuplicates(Character[]...Ch. 7 - Write a static method remove {int v, int [] in}...Ch. 7 - Suppose that we are selling boxes of candy for a...Ch. 7 - Create a class polynomial that is used to evaluate...Ch. 7 - Write a method beyond LastEntry (position) for the...Ch. 7 - Revise the class OneWayNoRepeatsList, as given in...Ch. 7 - Write a static method for selection sort that will...Ch. 7 - Overload the method selectionSort in Listing 7.10...Ch. 7 - Revise the method selectionSort that appears in...Ch. 7 - Prob. 18ECh. 7 - Write a sequential search of an array of integers,...Ch. 7 - Write a static method findFigure (picture,...Ch. 7 - Write a static method blur (double [] [] picture)...Ch. 7 - Write a program that reads integers, one per line,...Ch. 7 - The following code creates a small phone book. An...Ch. 7 - Write the method rotateRight that takes an array...Ch. 7 - The following code creates a ragged 2D array. The...Ch. 7 - Write a program that will read a line of text that...Ch. 7 - A palindrome is a word or phrase that reads the...Ch. 7 - Add a method bubbleSort to the class ArraySorter,...Ch. 7 - Add a method insertionSort to the class...Ch. 7 - The class TimeBook in Listing 7.14 is not really...Ch. 7 - Define a class called TicTacToe. An object of type...Ch. 7 - Repeat Programming Project 10 from Chapter 5 but...Ch. 7 - Prob. 8PPCh. 7 - Write a GUI application that displays a picture of...Ch. 7 - ELIZA was a program written in 1966 that parodied...Ch. 7 - Prob. 11PPCh. 7 - Create a GUI application that draws the following...Ch. 7 - Practice Program 2 used two arrays to implement a...Ch. 7 - Practice Program 5.4 asked you to define Trivia...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.Similar questions
- If you call setLineWidth to specify the GraphicsContext’s line thickness, all subsequent GraphicsContext method calls that draw lines or shape borders will use this setting. State whether the statement is true or false. If false, explain why.arrow_forwardJAVA APPLET Draw a pokemon character using lines and shapes. Apply colors. Feel free to use the following methods:• drawLine()• drawRect()• fillRect()• drawRoundRect()• fillRoundRect()• drawOval()• fillOval()• drawArc()• fillArc()• drawPolygon()• fillPolygon()• copyArea()• setPaint()• fill()• setStroke()• draw()arrow_forward.In class DrawDemo, create a new method named -drawTriangle. This method should create a pen (as in the drawSquare method) and then draw a green triangle.arrow_forward
- You will draw the multiple Zoogs by using for loop. Clear the display and start draw multiple Zoogs again when it reaches at the edge of the width. You can start from the assignment 3 and add for loop to draw multiple Zoogs. You need to do followings: 1. Need to declare frameRate(5). Otherwise, it will be too fast. 2. Zoog starts from a. zoogX= 80; b. zoogY= 130; 3. for drawing multiple Zoogs, a. increment ZoogX by 80; b. only 4 Zoogs are enough to show per displayarrow_forwardJava Questions - (Has 2 Parts). Based on each code, which answer out of the choices "A, B, C, D, E" is correct. Each question has one correct answer. Thank you. Part 1 - Which method do you need to invoke to display a frame (or a "form")? A. displayWindow = true;B. setVisible = true;C. setVisible(true);D. setDisplay(true);E. setShowForm(true); Part 2 - Which sets the frame (or a "form") width to 100 pixels and the height to 200 pixels? A. setSize(100, 200);B. setSize(200, 100);C. setDims(100, 200);D. setDimensions(200, 100);E. setWidth(100); setHeight(100);arrow_forwardCalculating the area under a curve is a standard problem in numerical methods. What you will develop is an app that calculates and displays the area under a range of curves. Figure 1: Area under the curve of y = x2 over the range 1 to 2, with 1 trapezoid. The area can be calculated by drawing one or more polygons (trapezoids) that approximate the curve. We start by drawing a trapezoid that encompasses our curve between the given limits and the x-axis, so for equation 1 of table 1, it looks like figure 1. We then calculate the area of the trapezoid. Notice that the trapezoid over-estimates the true area. With enough (smaller) trapezoids we can get a very good approximation to the area under the curve (see figure 2). The sum of the area of the smaller trapezoids is the area under the curve. The area of a trapezoid is given by: A = ½ (h1 + h2) d Plot graphs of the equations in table 1 for varying (input) total numbers of trapezoids. Compute and display the area between each curve and…arrow_forward
- Write a program that draws a fixed polygonwith points at (30, 10), (60, 30), (50, 70), (35, 35), and (10, 50). Wheneverthe mouse is moved, display a message indicating whether the mousepoint is inside the polygon at the mouse point or outside of it, as shown inFigure. To detect whether a point is inside a polygon, use the containsmethod defined in the Node class.arrow_forwardCreate a canvas. Using the canvas’s methods interactively, draw a red circle near the center of the canvas. Now draw a yellow rectangle.arrow_forwardUsing Java, solve the following problem using JavaFX: Write a program (Call the class ImageDisplay) that displays four images in a grid pane, as shown below. You are given 4 flags for the display, but you are free to choose other images. You are to use a GridPane for the layout. Also use ImageView. You will need to create an object for each image and use add method of GridPane to add an image to a specified row and column layout.arrow_forward
- Suppose you would like an application that displays a green square inside a black circle. Write a paint() method that will draw the image.arrow_forwardCreate the VisualCounter class, which supports both increment and decrement operations. Take the constructor's two arguments N and max, where N indicates the maximum operation number and max specifies the counter's maximum absolute value. Make a plot that displays the value of the counter each time its tally changes as a byproduct.arrow_forwardWrite a JavaFX application that creates polyline shapes dynamically using mouse clicks. Each mouse click adds a new line segment to the current polyline from the previous point to the current mouse position. Allow the user to end the current polyline with the double click. And provide a button that clears the window and allows the user to begin again.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- EBK JAVA PROGRAMMINGComputer ScienceISBN:9781305480537Author:FARRELLPublisher:CENGAGE LEARNING - CONSIGNMENT
EBK JAVA PROGRAMMING
Computer Science
ISBN:9781305480537
Author:FARRELL
Publisher:CENGAGE LEARNING - CONSIGNMENT