SlideShare a Scribd company logo

Import java.awt.; Import acm.program.; Import acm.graphics.;.pdf

A
apexcomputer54

The document includes Java code for generating Sierpinski carpet and triangle graphics using recursion. It defines classes for creating graphical elements and user interface controls, allowing users to adjust recursion levels and visible regions. The main classes are 'sierpinski' and 'sierpinskicarpet', each implementing drawing and GUI functionality through Swing components.

Education
1 of 9
Download to read offline
1
2
3
4
5
6
7
8
9
Import java.awt.*; Import acm.program.*; Import acm.graphics.*; public class Sierpinski extends GraphicsProgram { public void run() { GRect box = new GRect(20, 20, 242, 242); box.setFilled(true); add(box); drawGasket(20, 20, 243); } private void drawFigure(int x, int y, int side) { int sub = side / 3; GRect box = new GRect(x + sub, y + sub, sub - 1, sub - 1); box.setFilled(true); box.setColor(Color.WHITE); add(box); if (sub >= 3) { drawFigure(x, y, sub); drawFigure(x + sub, y, sub); drawFigure(x + 2 * sub, y, sub); drawFigure(x, y + sub, sub); drawFigure(x + 2 * sub, y + sub, sub); drawFigure(x, y + 2 * sub, sub); drawFigure(x + sub, y + 2 * sub, sub); drawFigure(x + 2 * sub, y + 2 * sub, sub); } } C.8 SQUARE in recursive method:- import java.awt.*; import java.awt.event.*; import javax.swing.*; public class SierpinskiCarpet extends JPanel implements ActionListener {
public static void main(String[] args) { JFrame window = new JFrame("Sierpinski Carpet"); window.setContentPane( new SierpinskiCarpet() ); window.pack(); window.setResizable(false); window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); Dimension screensize = Toolkit.getDefaultToolkit().getScreenSize(); int x = Math.max(10, (screensize.width - window.getWidth()) / 2); int y = Math.max(10, (screensize.height - window.getHeight()) / 2); window.setLocation(x,y); window.setVisible(true); } private int level; private JRadioButton[] levelButton; private JCheckBox[][] regionCheckbox; private Display display; private class Display extends JPanel { Display() { setBackground(Color.WHITE); setPreferredSize(new Dimension(729,729)); } protected void paintComponent(Graphics g) { super.paintComponent(g); drawCarpet(g,level,0,0,729); } }
public SierpinskiCarpet() { setLayout(new BorderLayout(3,3)); setBackground(Color.GRAY); setBorder(BorderFactory.createLineBorder(Color.GRAY,3)); display = new Display(); add(display,BorderLayout.CENTER); Box controls = Box.createVerticalBox(); controls.setBorder(BorderFactory.createEmptyBorder(10, 10, 10, 10)); controls.setBackground(Color.WHITE); controls.setOpaque(true); add(controls, BorderLayout.EAST); controls.add(new JLabel("Controls")); controls.add(Box.createVerticalStrut(30)); levelButton = new JRadioButton[7]; ButtonGroup grp = new ButtonGroup(); for (int i = 0; i < 7; i++) { levelButton[i] = new JRadioButton("Recursion Level " + i); grp.add(levelButton[i]); levelButton[i].addActionListener(this);controls.add(levelButton[i]); } level = 4; levelButton[4].setSelected(true); regionCheckbox = new JCheckBox[3][3]; JPanel checks = new JPanel(); checks.setLayout(new GridLayout(3,3,5,5));
for (int r = 0; r < 3; r++) { for (int c = 0; c < 3; c++) { regionCheckbox[r][c] = new JCheckBox(); checks.add(regionCheckbox[r][c]); regionCheckbox[r][c].addActionListener(this); regionCheckbox[r][c].setSelected(true); } } checks.setMaximumSize(new Dimension(90,90)); checks.setAlignmentX(LEFT_ALIGNMENT); checks.setBackground(Color.WHITE); regionCheckbox[1][1].setSelected(false); controls.add(Box.createVerticalStrut(30)); controls.add(new JLabel("Regions To Include:")); controls.add(Box.createVerticalStrut(15)); controls.add(checks); } public void actionPerformed(ActionEvent e) { Object src = e.getSource(); for (int i = 0; i < 7; i++) { if (src == levelButton[i]) { level = i; break; } }
} private void drawCarpet(Graphics g, int level, int x, int y, int size) { g.fillRect(x,y,size,size); } } Solution Import java.awt.*; Import acm.program.*; Import acm.graphics.*; public class Sierpinski extends GraphicsProgram { public void run() { GRect box = new GRect(20, 20, 242, 242); box.setFilled(true); add(box); drawGasket(20, 20, 243); } private void drawFigure(int x, int y, int side) { int sub = side / 3; GRect box = new GRect(x + sub, y + sub, sub - 1, sub - 1); box.setFilled(true); box.setColor(Color.WHITE); add(box); if (sub >= 3) { drawFigure(x, y, sub); drawFigure(x + sub, y, sub); drawFigure(x + 2 * sub, y, sub); drawFigure(x, y + sub, sub); drawFigure(x + 2 * sub, y + sub, sub); drawFigure(x, y + 2 * sub, sub);
drawFigure(x + sub, y + 2 * sub, sub); drawFigure(x + 2 * sub, y + 2 * sub, sub); } } C.8 SQUARE in recursive method:- import java.awt.*; import java.awt.event.*; import javax.swing.*; public class SierpinskiCarpet extends JPanel implements ActionListener { public static void main(String[] args) { JFrame window = new JFrame("Sierpinski Carpet"); window.setContentPane( new SierpinskiCarpet() ); window.pack(); window.setResizable(false); window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); Dimension screensize = Toolkit.getDefaultToolkit().getScreenSize(); int x = Math.max(10, (screensize.width - window.getWidth()) / 2); int y = Math.max(10, (screensize.height - window.getHeight()) / 2); window.setLocation(x,y); window.setVisible(true); } private int level; private JRadioButton[] levelButton; private JCheckBox[][] regionCheckbox; private Display display; private class Display extends JPanel { Display() { setBackground(Color.WHITE); setPreferredSize(new Dimension(729,729)); }
protected void paintComponent(Graphics g) { super.paintComponent(g); drawCarpet(g,level,0,0,729); } } public SierpinskiCarpet() { setLayout(new BorderLayout(3,3)); setBackground(Color.GRAY); setBorder(BorderFactory.createLineBorder(Color.GRAY,3)); display = new Display(); add(display,BorderLayout.CENTER); Box controls = Box.createVerticalBox(); controls.setBorder(BorderFactory.createEmptyBorder(10, 10, 10, 10)); controls.setBackground(Color.WHITE); controls.setOpaque(true); add(controls, BorderLayout.EAST); controls.add(new JLabel("Controls")); controls.add(Box.createVerticalStrut(30)); levelButton = new JRadioButton[7]; ButtonGroup grp = new ButtonGroup(); for (int i = 0; i < 7; i++) { levelButton[i] = new JRadioButton("Recursion Level " + i); grp.add(levelButton[i]); levelButton[i].addActionListener(this);controls.add(levelButton[i]); }
level = 4; levelButton[4].setSelected(true); regionCheckbox = new JCheckBox[3][3]; JPanel checks = new JPanel(); checks.setLayout(new GridLayout(3,3,5,5)); for (int r = 0; r < 3; r++) { for (int c = 0; c < 3; c++) { regionCheckbox[r][c] = new JCheckBox(); checks.add(regionCheckbox[r][c]); regionCheckbox[r][c].addActionListener(this); regionCheckbox[r][c].setSelected(true); } } checks.setMaximumSize(new Dimension(90,90)); checks.setAlignmentX(LEFT_ALIGNMENT); checks.setBackground(Color.WHITE); regionCheckbox[1][1].setSelected(false); controls.add(Box.createVerticalStrut(30)); controls.add(new JLabel("Regions To Include:")); controls.add(Box.createVerticalStrut(15)); controls.add(checks); } public void actionPerformed(ActionEvent e) { Object src = e.getSource();
for (int i = 0; i < 7; i++) { if (src == levelButton[i]) { level = i; break; } } } private void drawCarpet(Graphics g, int level, int x, int y, int size) { g.fillRect(x,y,size,size); } }

More Related Content

PDF
662305 11
Nitigan Nakjuatong
 
PDF
Creating an Uber Clone - Part VIII.pdf
ShaiAlmog1
 
PPT
Mobile Game and Application with J2ME - Collision Detection
Jenchoke Tachagomain
 
PPT
Mobile Game and Application with J2ME
Jenchoke Tachagomain
 
PDF
662305 LAB12
Nitigan Nakjuatong
 
DOC
Ocr code
wi7sonjoseph
 
PDF
662305 LAB13
Nitigan Nakjuatong
 
PDF
write a prgoram that displays four images or objects in a 2 x 2 grid.pdf
PRATIKSINHA7304
 
662305 11
Nitigan Nakjuatong
 
Creating an Uber Clone - Part VIII.pdf
ShaiAlmog1
 
Mobile Game and Application with J2ME - Collision Detection
Jenchoke Tachagomain
 
Mobile Game and Application with J2ME
Jenchoke Tachagomain
 
662305 LAB12
Nitigan Nakjuatong
 
Ocr code
wi7sonjoseph
 
662305 LAB13
Nitigan Nakjuatong
 
write a prgoram that displays four images or objects in a 2 x 2 grid.pdf
PRATIKSINHA7304
 

Similar to Import java.awt.; Import acm.program.; Import acm.graphics.;.pdf (20)

PDF
import java.util.Scanner;public class Main {    public static in.pdf
anwarsadath111
 
PDF
import java.awt.;import java.awt.event.MouseAdaptor;import java.pdf
anyacarpets
 
PDF
Write a GUI application to simulate writing out a check. The value o.pdf
fathimaoptical
 
PDF
Sokoban Game Development Using Java ( Updated using Screenshots & Class Diagr...
British Council
 
PDF
This is Java,I am currently stumped on how to add a scoreboard for.pdf
anjandavid
 
PDF
In Java Write a GUI application to simulate writing out a check. The.pdf
flashfashioncasualwe
 
DOC
Awt
Swarup Saha
 
PDF
PROGRAMING IN JAVA 4TH SEM DIGVIJAY COLLAGE
yash production
 
DOCX
No3
syahronirpl
 
PDF
I dont know what is wrong with this roulette program I cant seem.pdf
archanaemporium
 
PDF
package chapter15;import javafx.application.Application;import j.pdf
KARTIKINDIA
 
PDF
Why am I getting an out of memory error and no window of my .pdf
aakarcreations1
 
PDF
Creating an Uber Clone - Part XIX.pdf
ShaiAlmog1
 
PDF
662305 10
Nitigan Nakjuatong
 
PDF
Chat application in java using swing and socket programming.
Kuldeep Jain
 
PDF
Java programs
TAUQEER ABBAS
 
PDF
Working with Layout Managers. Notes 1. In part 2, note that the Gam.pdf
udit652068
 
PDF
import java.awt.;import java.awt.event.;import javax.swing.;.pdf
aoneonlinestore1
 
PDF
Tic Tac Toe game with GUI written in java.SolutionAnswerimp.pdf
infomalad
 
PPT
Graphical User Components Part 2
Andy Juan Sarango Veliz
 
import java.util.Scanner;public class Main {    public static in.pdf
anwarsadath111
 
import java.awt.;import java.awt.event.MouseAdaptor;import java.pdf
anyacarpets
 
Write a GUI application to simulate writing out a check. The value o.pdf
fathimaoptical
 
Sokoban Game Development Using Java ( Updated using Screenshots & Class Diagr...
British Council
 
This is Java,I am currently stumped on how to add a scoreboard for.pdf
anjandavid
 
In Java Write a GUI application to simulate writing out a check. The.pdf
flashfashioncasualwe
 
Awt
Swarup Saha
 
PROGRAMING IN JAVA 4TH SEM DIGVIJAY COLLAGE
yash production
 
No3
syahronirpl
 
I dont know what is wrong with this roulette program I cant seem.pdf
archanaemporium
 
package chapter15;import javafx.application.Application;import j.pdf
KARTIKINDIA
 
Why am I getting an out of memory error and no window of my .pdf
aakarcreations1
 
Creating an Uber Clone - Part XIX.pdf
ShaiAlmog1
 
662305 10
Nitigan Nakjuatong
 
Chat application in java using swing and socket programming.
Kuldeep Jain
 
Java programs
TAUQEER ABBAS
 
Working with Layout Managers. Notes 1. In part 2, note that the Gam.pdf
udit652068
 
import java.awt.;import java.awt.event.;import javax.swing.;.pdf
aoneonlinestore1
 
Tic Tac Toe game with GUI written in java.SolutionAnswerimp.pdf
infomalad
 
Graphical User Components Part 2
Andy Juan Sarango Veliz
 
Ad

More from apexcomputer54 (20)

PDF
Using gordon growth model Value of stock=Dividend paid(1+growt.pdf
apexcomputer54
 
PDF
not able to sign in .pdf
apexcomputer54
 
PDF
moles of NH3 = 3417 = 2 moles of O2 = 4032 = 1..pdf
apexcomputer54
 
PDF
It would be . like for hydrated compound of.pdf
apexcomputer54
 
PDF
NO has got a strong bond because it has got an co.pdf
apexcomputer54
 
PDF
total number of moles of liquid increase, .pdf
apexcomputer54
 
PDF
Yearscost of machin7 Year MACRS rateannual depreciation = cost.pdf
apexcomputer54
 
PDF
what this meansSolutionwhat this means.pdf
apexcomputer54
 
PDF
we will use tables of normal distribution ( Z distribution)P( z .pdf
apexcomputer54
 
PDF
The Northeast blackout of 2003 was a widespread power outage that oc.pdf
apexcomputer54
 
PDF
The chemical reaction responsible for formation of water2H2+ O2--.pdf
apexcomputer54
 
PDF
SolutionDomain name system is used to determine the IP address of.pdf
apexcomputer54
 
PDF
sample mean = population mean = 2.11standard deviation = popul.pdf
apexcomputer54
 
PDF
Polymerase chain reaction (PCR) is a process used to replicate DNA i.pdf
apexcomputer54
 
PDF
Glutamic acid and Lycine Hydrogen bonding could .pdf
apexcomputer54
 
PDF
Need a clear pictureSolutionNeed a clear picture.pdf
apexcomputer54
 
PDF
Li2SSolutionLi2S.pdf
apexcomputer54
 
PDF
For H2SO3 pK1 = 1.8 and pK2 = 7.2 and thus K1 = .pdf
apexcomputer54
 
PDF
find the largest electronegativity difference (mo.pdf
apexcomputer54
 
PDF
let an=(-1)^(2n+1)and L=-1let us ahow that L=lim anindeed if e.pdf
apexcomputer54
 
Using gordon growth model Value of stock=Dividend paid(1+growt.pdf
apexcomputer54
 
not able to sign in .pdf
apexcomputer54
 
moles of NH3 = 3417 = 2 moles of O2 = 4032 = 1..pdf
apexcomputer54
 
It would be . like for hydrated compound of.pdf
apexcomputer54
 
NO has got a strong bond because it has got an co.pdf
apexcomputer54
 
total number of moles of liquid increase, .pdf
apexcomputer54
 
Yearscost of machin7 Year MACRS rateannual depreciation = cost.pdf
apexcomputer54
 
what this meansSolutionwhat this means.pdf
apexcomputer54
 
we will use tables of normal distribution ( Z distribution)P( z .pdf
apexcomputer54
 
The Northeast blackout of 2003 was a widespread power outage that oc.pdf
apexcomputer54
 
The chemical reaction responsible for formation of water2H2+ O2--.pdf
apexcomputer54
 
SolutionDomain name system is used to determine the IP address of.pdf
apexcomputer54
 
sample mean = population mean = 2.11standard deviation = popul.pdf
apexcomputer54
 
Polymerase chain reaction (PCR) is a process used to replicate DNA i.pdf
apexcomputer54
 
Glutamic acid and Lycine Hydrogen bonding could .pdf
apexcomputer54
 
Need a clear pictureSolutionNeed a clear picture.pdf
apexcomputer54
 
Li2SSolutionLi2S.pdf
apexcomputer54
 
For H2SO3 pK1 = 1.8 and pK2 = 7.2 and thus K1 = .pdf
apexcomputer54
 
find the largest electronegativity difference (mo.pdf
apexcomputer54
 
let an=(-1)^(2n+1)and L=-1let us ahow that L=lim anindeed if e.pdf
apexcomputer54
 
Ad

Recently uploaded (20)

PPTX
Final Presentation General Medicine 03-08-2024.pptx
ZaheerAhmad228692
 
PPTX
Lesson notes of climatology university.
sgladness67
 
PPTX
Institutional Correction lecture only . . .
limvtheghins
 
PDF
OBE - B.A.(HON'S) IN INTERIOR ARCHITECTURE -Ar.MOHIUDDIN.pdf
ArchitectAFMMohiuddi
 
PDF
Abdominal Access Techniques with Prof. Dr. R K Mishra
mohitsuren827
 
PDF
Module 4: Burden of Disease Tutorial Slides S2 2025
Jonathan Hallett
 
PPTX
202450812 BayCHI UCSC-SV 20250812 v17.pptx
home
 
PDF
O5-L3 Freight Transport Ops (International) V1.pdf
labyankof
 
PDF
FourierSeries-QuestionsWithAnswers(Part-A).pdf
Raji Murugan
 
PDF
Supply Chain Operations Speaking Notes -ICLT Program
labyankof
 
PPTX
Microbial diseases, their pathogenesis and prophylaxis
DevlinaSengupta
 
PPTX
school management -TNTEU- B.Ed., Semester II Unit 1.pptx
NihumathunnisaH
 
PDF
STATICS OF THE RIGID BODIES Hibbelers.pdf
pascualasturiaskaye4
 
PDF
Computing-Curriculum for Schools in Ghana
abigailanane203
 
PPTX
human mycosis Human fungal infections are called human mycosis..pptx
shilpa939953
 
PDF
O7-L3 Supply Chain Operations - ICLT Program
labyankof
 
PDF
3rd Neelam Sanjeevareddy Memorial Lecture.pdf
Academy of Grassroots Studies and Research of India (AGRASRI)
 
PDF
Chapter 2 Heredity, Prenatal Development, and Birth.pdf
MarjorieLopezTiu
 
PDF
Saundersa Comprehensive Review for the NCLEX-RN Examination.pdf
sreejithcareers
 
PPTX
IMMUNITY IMMUNITY refers to protection against infection, and the immune syst...
shilpa939953
 
Final Presentation General Medicine 03-08-2024.pptx
ZaheerAhmad228692
 
Lesson notes of climatology university.
sgladness67
 
Institutional Correction lecture only . . .
limvtheghins
 
OBE - B.A.(HON'S) IN INTERIOR ARCHITECTURE -Ar.MOHIUDDIN.pdf
ArchitectAFMMohiuddi
 
Abdominal Access Techniques with Prof. Dr. R K Mishra
mohitsuren827
 
Module 4: Burden of Disease Tutorial Slides S2 2025
Jonathan Hallett
 
202450812 BayCHI UCSC-SV 20250812 v17.pptx
home
 
O5-L3 Freight Transport Ops (International) V1.pdf
labyankof
 
FourierSeries-QuestionsWithAnswers(Part-A).pdf
Raji Murugan
 
Supply Chain Operations Speaking Notes -ICLT Program
labyankof
 
Microbial diseases, their pathogenesis and prophylaxis
DevlinaSengupta
 
school management -TNTEU- B.Ed., Semester II Unit 1.pptx
NihumathunnisaH
 
STATICS OF THE RIGID BODIES Hibbelers.pdf
pascualasturiaskaye4
 
Computing-Curriculum for Schools in Ghana
abigailanane203
 
human mycosis Human fungal infections are called human mycosis..pptx
shilpa939953
 
O7-L3 Supply Chain Operations - ICLT Program
labyankof
 
3rd Neelam Sanjeevareddy Memorial Lecture.pdf
Academy of Grassroots Studies and Research of India (AGRASRI)
 
Chapter 2 Heredity, Prenatal Development, and Birth.pdf
MarjorieLopezTiu
 
Saundersa Comprehensive Review for the NCLEX-RN Examination.pdf
sreejithcareers
 
IMMUNITY IMMUNITY refers to protection against infection, and the immune syst...
shilpa939953
 

Import java.awt.; Import acm.program.; Import acm.graphics.;.pdf

  • 1. Import java.awt.*; Import acm.program.*; Import acm.graphics.*; public class Sierpinski extends GraphicsProgram { public void run() { GRect box = new GRect(20, 20, 242, 242); box.setFilled(true); add(box); drawGasket(20, 20, 243); } private void drawFigure(int x, int y, int side) { int sub = side / 3; GRect box = new GRect(x + sub, y + sub, sub - 1, sub - 1); box.setFilled(true); box.setColor(Color.WHITE); add(box); if (sub >= 3) { drawFigure(x, y, sub); drawFigure(x + sub, y, sub); drawFigure(x + 2 * sub, y, sub); drawFigure(x, y + sub, sub); drawFigure(x + 2 * sub, y + sub, sub); drawFigure(x, y + 2 * sub, sub); drawFigure(x + sub, y + 2 * sub, sub); drawFigure(x + 2 * sub, y + 2 * sub, sub); } } C.8 SQUARE in recursive method:- import java.awt.*; import java.awt.event.*; import javax.swing.*; public class SierpinskiCarpet extends JPanel implements ActionListener {
  • 2. public static void main(String[] args) { JFrame window = new JFrame("Sierpinski Carpet"); window.setContentPane( new SierpinskiCarpet() ); window.pack(); window.setResizable(false); window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); Dimension screensize = Toolkit.getDefaultToolkit().getScreenSize(); int x = Math.max(10, (screensize.width - window.getWidth()) / 2); int y = Math.max(10, (screensize.height - window.getHeight()) / 2); window.setLocation(x,y); window.setVisible(true); } private int level; private JRadioButton[] levelButton; private JCheckBox[][] regionCheckbox; private Display display; private class Display extends JPanel { Display() { setBackground(Color.WHITE); setPreferredSize(new Dimension(729,729)); } protected void paintComponent(Graphics g) { super.paintComponent(g); drawCarpet(g,level,0,0,729); } }
  • 3. public SierpinskiCarpet() { setLayout(new BorderLayout(3,3)); setBackground(Color.GRAY); setBorder(BorderFactory.createLineBorder(Color.GRAY,3)); display = new Display(); add(display,BorderLayout.CENTER); Box controls = Box.createVerticalBox(); controls.setBorder(BorderFactory.createEmptyBorder(10, 10, 10, 10)); controls.setBackground(Color.WHITE); controls.setOpaque(true); add(controls, BorderLayout.EAST); controls.add(new JLabel("Controls")); controls.add(Box.createVerticalStrut(30)); levelButton = new JRadioButton[7]; ButtonGroup grp = new ButtonGroup(); for (int i = 0; i < 7; i++) { levelButton[i] = new JRadioButton("Recursion Level " + i); grp.add(levelButton[i]); levelButton[i].addActionListener(this);controls.add(levelButton[i]); } level = 4; levelButton[4].setSelected(true); regionCheckbox = new JCheckBox[3][3]; JPanel checks = new JPanel(); checks.setLayout(new GridLayout(3,3,5,5));
  • 4. for (int r = 0; r < 3; r++) { for (int c = 0; c < 3; c++) { regionCheckbox[r][c] = new JCheckBox(); checks.add(regionCheckbox[r][c]); regionCheckbox[r][c].addActionListener(this); regionCheckbox[r][c].setSelected(true); } } checks.setMaximumSize(new Dimension(90,90)); checks.setAlignmentX(LEFT_ALIGNMENT); checks.setBackground(Color.WHITE); regionCheckbox[1][1].setSelected(false); controls.add(Box.createVerticalStrut(30)); controls.add(new JLabel("Regions To Include:")); controls.add(Box.createVerticalStrut(15)); controls.add(checks); } public void actionPerformed(ActionEvent e) { Object src = e.getSource(); for (int i = 0; i < 7; i++) { if (src == levelButton[i]) { level = i; break; } }
  • 5. } private void drawCarpet(Graphics g, int level, int x, int y, int size) { g.fillRect(x,y,size,size); } } Solution Import java.awt.*; Import acm.program.*; Import acm.graphics.*; public class Sierpinski extends GraphicsProgram { public void run() { GRect box = new GRect(20, 20, 242, 242); box.setFilled(true); add(box); drawGasket(20, 20, 243); } private void drawFigure(int x, int y, int side) { int sub = side / 3; GRect box = new GRect(x + sub, y + sub, sub - 1, sub - 1); box.setFilled(true); box.setColor(Color.WHITE); add(box); if (sub >= 3) { drawFigure(x, y, sub); drawFigure(x + sub, y, sub); drawFigure(x + 2 * sub, y, sub); drawFigure(x, y + sub, sub); drawFigure(x + 2 * sub, y + sub, sub); drawFigure(x, y + 2 * sub, sub);
  • 6. drawFigure(x + sub, y + 2 * sub, sub); drawFigure(x + 2 * sub, y + 2 * sub, sub); } } C.8 SQUARE in recursive method:- import java.awt.*; import java.awt.event.*; import javax.swing.*; public class SierpinskiCarpet extends JPanel implements ActionListener { public static void main(String[] args) { JFrame window = new JFrame("Sierpinski Carpet"); window.setContentPane( new SierpinskiCarpet() ); window.pack(); window.setResizable(false); window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); Dimension screensize = Toolkit.getDefaultToolkit().getScreenSize(); int x = Math.max(10, (screensize.width - window.getWidth()) / 2); int y = Math.max(10, (screensize.height - window.getHeight()) / 2); window.setLocation(x,y); window.setVisible(true); } private int level; private JRadioButton[] levelButton; private JCheckBox[][] regionCheckbox; private Display display; private class Display extends JPanel { Display() { setBackground(Color.WHITE); setPreferredSize(new Dimension(729,729)); }
  • 7. protected void paintComponent(Graphics g) { super.paintComponent(g); drawCarpet(g,level,0,0,729); } } public SierpinskiCarpet() { setLayout(new BorderLayout(3,3)); setBackground(Color.GRAY); setBorder(BorderFactory.createLineBorder(Color.GRAY,3)); display = new Display(); add(display,BorderLayout.CENTER); Box controls = Box.createVerticalBox(); controls.setBorder(BorderFactory.createEmptyBorder(10, 10, 10, 10)); controls.setBackground(Color.WHITE); controls.setOpaque(true); add(controls, BorderLayout.EAST); controls.add(new JLabel("Controls")); controls.add(Box.createVerticalStrut(30)); levelButton = new JRadioButton[7]; ButtonGroup grp = new ButtonGroup(); for (int i = 0; i < 7; i++) { levelButton[i] = new JRadioButton("Recursion Level " + i); grp.add(levelButton[i]); levelButton[i].addActionListener(this);controls.add(levelButton[i]); }
  • 8. level = 4; levelButton[4].setSelected(true); regionCheckbox = new JCheckBox[3][3]; JPanel checks = new JPanel(); checks.setLayout(new GridLayout(3,3,5,5)); for (int r = 0; r < 3; r++) { for (int c = 0; c < 3; c++) { regionCheckbox[r][c] = new JCheckBox(); checks.add(regionCheckbox[r][c]); regionCheckbox[r][c].addActionListener(this); regionCheckbox[r][c].setSelected(true); } } checks.setMaximumSize(new Dimension(90,90)); checks.setAlignmentX(LEFT_ALIGNMENT); checks.setBackground(Color.WHITE); regionCheckbox[1][1].setSelected(false); controls.add(Box.createVerticalStrut(30)); controls.add(new JLabel("Regions To Include:")); controls.add(Box.createVerticalStrut(15)); controls.add(checks); } public void actionPerformed(ActionEvent e) { Object src = e.getSource();
  • 9. for (int i = 0; i < 7; i++) { if (src == levelButton[i]) { level = i; break; } } } private void drawCarpet(Graphics g, int level, int x, int y, int size) { g.fillRect(x,y,size,size); } }