Draw a circle with two mouse presses Program plan: In a file “CircleDrawerFrame.java”, import the necessary packages and create a class “CircleDrawerFrame”, Declare the object “CircleDrawerComponent”. Declare the object “Point2D”. Initialize the frame width and height. Define the constructor, Create the object “CircleDrawerComponent”. Initialize the maximum click. Create the object “Point2D”. Create a class “MousePressedListener”, Define the method “mousePressed()”, Check whether the click is greater than the maximum click, If it is true, return nothing. Assign the value obtained from “getX()”, and “getY()”. Fill the array. Increment the click. Check whether the click is equal to the maximum click, If it is true, Assign the value obtained from “getX()”, and “getY()”. Calculate the circle’s radius. Call the method “setPositionAndSize()”. Set the click to “0”. Define do-nothing method “mouseReleased ()”. Define do-nothing method “mouseClicked ()”. Define do-nothing method “mouseEntered ()”. Define do-nothing method “mouseExited()”. Create the object for “MousePressedListener”. Call the method “addMouseListener()”. Set the size. Add the component. In a file “CircleDrawerComponent.java”, import necessary packages, and create a class “CircleDrawerComponent”, Declare the necessary variables. Define the constructor. Define the method “setPositionAndSize ()” that sets the “x”, “y”, and “radius”. Define the method “paintComponent ()”, Call the super class method. Create “Graphics2D” object. Create “Ellipse2D” object. Call the method “draw()”. Call the method “repaint()”. In a file “CircleDrawerView.java”, import necessary package, and create a class “CircleDrawerView”, Define the “main()” method. Create “JFrame” object. Set the frame title. Set the operation on the frame. Make the frame visible.

Question

Want to see the full answer?

Answer 1

Question

Chapter 11, Problem 9PP

Program Plan Intro

Draw a circle with two mouse presses

Program plan:

In a file “CircleDrawerFrame.java”, import the necessary packages and create a class “CircleDrawerFrame”,

Declare the object “CircleDrawerComponent”.

Declare the object “Point2D”.

Initialize the frame width and height.

Define the constructor,

Create the object “CircleDrawerComponent”.

Initialize the maximum click.

Create the object “Point2D”.

Create a class “MousePressedListener”,

Define the method “mousePressed()”,

Check whether the click is greater than the maximum click,

If it is true, return nothing.

Assign the value obtained from “getX()”, and “getY()”.

Fill the array.

Increment the click.

Check whether the click is equal to the maximum click,

If it is true, Assign the value obtained from “getX()”, and “getY()”.

Calculate the circle’s radius.

Call the method “setPositionAndSize()”.

Set the click to “0”.

Define do-nothing method “mouseReleased ()”.

Define do-nothing method “mouseClicked ()”.

Define do-nothing method “mouseEntered ()”.

Define do-nothing method “mouseExited()”.

Create the object for “MousePressedListener”.

Call the method “addMouseListener()”.

Set the size.

Add the component.

In a file “CircleDrawerComponent.java”, import necessary packages, and create a class “CircleDrawerComponent”,

Declare the necessary variables.

Define the constructor.

Define the method “setPositionAndSize ()” that sets the “x”, “y”, and “radius”.

Define the method “paintComponent ()”,

Call the super class method.

Create “Graphics2D” object.

Create “Ellipse2D” object.

Call the method “draw()”.

Call the method “repaint()”.

In a file “CircleDrawerView.java”, import necessary package, and create a class “CircleDrawerView”,

Define the “main()” method.

Create “JFrame” object.

Set the frame title.

Set the operation on the frame.

Make the frame visible.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

Objective: 1. Implement a custom Vector class in C++ that manages dynamic memory efficiently. 2. Demonstrate an understanding of the Big Five by managing deep copies, move semantics, and resource cleanup. 3. Explore the performance trade-offs between heap and stack allocation. Task Description: Part 1: Custom Vector Implementation 1. Create a Vector class that manages a dynamically allocated array. 。 Member Variables: ° T✶ data; // Dynamically allocated array for storage. std::size_t size; // Number of elements currently in the vector. std::size_t capacity; // Maximum number of elements before reallocation is required. 2. Implement the following core member functions: Default Constructor: Initialize an empty vector with no allocated storage. 。 Destructor: Free any dynamically allocated memory. 。 Copy Constructor: Perform a deep copy of the data array. 。 Copy Assignment Operator: Free existing resources and perform a deep copy. Move Constructor: Transfer ownership of the data array…

2.68♦♦ Write code for a function with the following prototype: * Mask with least signficant n bits set to 1 * Examples: n = 6 -> 0x3F, n = 17-> 0x1FFFF * Assume 1 <= n <= w int lower_one_mask (int n); Your function should follow the bit-level integer coding rules Be careful of the case n = W.

Hi-Volt Components You are the IT manager at Hi-Voltage Components, a medium-sized firm that makes specialized circuit boards. Hi-Voltage's largest customer, Green Industries, recently installed a computerized purchasing sys- tem. If Hi-Voltage connects to the purchasing system, Green Industries will be able to submit purchase orders electronically. Although Hi-Voltage has a computerized accounting system, that system is not capable of handling EDI. Tasks 1. What options does Hi-Voltage have for developing a system to connect with Green Industries' pur- chasing system? 2. What terms or concepts describe the proposed computer-to-computer relationship between Hi-Voltage and Green Industries? why not? 3. Would Hi-Voltage's proposed new system be a transaction processing system? Why or 4. Before Hi-Voltage makes a final decision, should the company consider an ERP system? Why or why not?