BIG JAVA: LATE OBJECTS
2nd Edition
ISBN: 9781119626220
Author: Horstmann
Publisher: WILEY
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Question
Chapter 11, Problem 10PP
Program Plan Intro
Triangle
Program plan:
- In a file “TriangleDrawerComponent.java”, import necessary packages and create a class “TriangleDrawerComponent” that extends “JComponent” class,
- Declare the array.
- Declare the variable.
- Declare the necessary static variable.
- Define the constructor,
- Fill the array.
- Set the number of points to “0”.
- Define the method “set_FirstPoint()” to set the coordinates for first point.
- Call the method the method “set_Point()”.
- Define the method “set_SecondPoint()” to set the coordinates for second point.
- Call the method the method “set_Point()”.
- Define the method “set_ThirdPoint()” to set the coordinates for third point.
- Call the method the method “set_Point()”.
- Define the method “set_Point()” to set the coordinates for “idx” point.
- Check the condition,
- Fill the array.
- Increment the number of points.
- Check the condition,
- Define the method “clear_Points()” to clear the points.
- Define the method “paintComponent()” to paint the component,
- Call the super class method “paintComponent()”.
- Create the object fro “Graphics2D”.
- Check whether the point is greater than “0”,
- If it is true, call the method “draw()” to draw the component.
- Check whether the point is greater than “1”,
-
- If it is true, call the method “draw()” to draw the component.
- Check whether the point is greater than “0”,
-
- If it is true, call the method “draw()” twice to draw the component with different points.
- If it is true, call the method “draw()” to draw the component.
- In a file “TriangleDrawerFrame.java”, create a class “TriangleDrawerFrame” that extends “JFrame” class,
- Declare the object of “TriangleDrawerComponent”.
- Initialize the frame width and size.
- Define the constructor,
- Create the object for “TriangleDrawerComponent”.
- Initialize the maximum clicks.
- Create a class “MousePressedListener” that implements “MouseListener”.
- Define the method “mousePressed()”,
- Check whether the click is greater than the maximum click initialized.
- Set the click to “0”.
- Assign the value returned from the method “getX()”.
- Assign the value returned from the method “getY()”.
- Check whether the click is “0”,
-
- Call the method “set_FirstPoint()”.
- Check whether the click is “1”,
-
- Call the method “set_SecondPoint()”.
- Check whether the click is “2”,
-
- Call the method “set_ThirdPoint()”.
- Call the method “repaint()”.
- Increment the click by “1”.
-
-
- Define do-nothing method “mouseReleased()”,
- Define do-nothing method “mouseClicked()”,
- Define do-nothing method “mouseEntered()”,
- Define do-nothing method “mouseExited()”,
- Set the click to “0”.
-
- Define the method “mousePressed()”,
- Create an object “MousePressedListener”.
- Call the method “addMouseListener()”.
- Call the method “setSize()” to set the size.
- Add the component.
- In a file “TriangleDrawerTester.java”, import necessary package, and create a class “TriangleDrawerTester”,
- Define the method “main()”,
- Create “JFrame” object.
- Set the title for the frame.
- Set the operation on the frame.
- Make the frame visible.
- Define the method “main()”,
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BIG JAVA: LATE OBJECTS
Ch. 11.1 - Prob. 1SCCh. 11.1 - Prob. 2SCCh. 11.1 - Prob. 3SCCh. 11.1 - Prob. 4SCCh. 11.1 - Prob. 5SCCh. 11.2 - Prob. 6SCCh. 11.2 - Prob. 7SCCh. 11.2 - Prob. 8SCCh. 11.2 - Prob. 9SCCh. 11.2 - Prob. 10SC
Ch. 11.2 - Prob. 11SCCh. 11.3 - Prob. 12SCCh. 11.3 - Prob. 13SCCh. 11.3 - Prob. 14SCCh. 11.3 - Prob. 15SCCh. 11.3 - Prob. 16SCCh. 11.4 - Prob. 17SCCh. 11.4 - Prob. 18SCCh. 11.5 - Prob. 19SCCh. 11.5 - Prob. 20SCCh. 11.5 - Prob. 21SCCh. 11.5 - Prob. 22SCCh. 11.5 - Prob. 23SCCh. 11.5 - Prob. 24SCCh. 11.6 - Prob. 25SCCh. 11.6 - Prob. 26SCCh. 11.6 - Prob. 27SCCh. 11 - Prob. 1RECh. 11 - Prob. 2RECh. 11 - Prob. 3RECh. 11 - Prob. 4RECh. 11 - Prob. 5RECh. 11 - Prob. 6RECh. 11 - Prob. 7RECh. 11 - Prob. 8RECh. 11 - Prob. 9RECh. 11 - Prob. 10RECh. 11 - Prob. 11RECh. 11 - Prob. 12RECh. 11 - Prob. 13RECh. 11 - Prob. 14RECh. 11 - Prob. 15RECh. 11 - Prob. 16RECh. 11 - Prob. 17RECh. 11 - Prob. 18RECh. 11 - Prob. 19RECh. 11 - Prob. 20RECh. 11 - Prob. 21RECh. 11 - Prob. 1PECh. 11 - Prob. 2PECh. 11 - Prob. 3PECh. 11 - Prob. 4PECh. 11 - Prob. 5PECh. 11 - Prob. 6PECh. 11 - Prob. 7PECh. 11 - Prob. 8PECh. 11 - Prob. 9PECh. 11 - Prob. 10PECh. 11 - Prob. 11PECh. 11 - Prob. 3PPCh. 11 - Prob. 4PPCh. 11 - Prob. 5PPCh. 11 - Prob. 6PPCh. 11 - Prob. 7PPCh. 11 - Prob. 8PPCh. 11 - Prob. 9PPCh. 11 - Prob. 10PPCh. 11 - Prob. 11PPCh. 11 - Prob. 13PPCh. 11 - Prob. 14PPCh. 11 - Prob. 15PP
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