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| import java.awt.Color;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.Graphics;
import java.awt.TextField;
import java.util.Random;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JTextField;
import sun.font.TextLabel;
public class CrossFractal extends JPanel
{
Graphics g;
static int r =180;
static int k;
int recursion;
int xc1=getWidth()/2;
int yc1=getHeight()/2;
public CrossFractal()
{
JFrame f=new JFrame();
String level=JOptionPane.showInputDialog("Enter the level of recursion (between 1 et 10)?");
recursion=Integer.parseInt(level);
while(recursion>10 | recursion<1)
{
String level1=JOptionPane.showInputDialog(null,"Please enter the correct level of recursion...");
recursion=Integer.parseInt(level1);
}
JLabel jl=new JLabel(" Cross Fractal");
jl.setOpaque(true);
jl.setBackground(Color.white);
jl.setForeground(Color.red);
jl.setPreferredSize(new Dimension(100,30));
f.setSize(1200,600);
f.setLocationRelativeTo(null);
f.setResizable(false);
f.setAlwaysOnTop(true);;
JPanel panel=new JPanel();
panel.setBackground(new Color(25,250,0));
f.add(panel);
f.setVisible(true);
panel.setLayout(new FlowLayout(FlowLayout.LEFT,20,20));
panel.add(jl);
panel.setPreferredSize(new Dimension(1200, 600));
drawCross( g, xc1, yc1, r, k);
}
public void drawCross( Graphics g, int xc1, int yc1, int r,int k)
{
if ( k == 0) return;
int xc2 = (int) xc1;
int yc2 = (int) (int) (yc1-r);
int xc3 = (int) (xc1+r);
int yc3 = yc1;
int xc4= xc1;
int yc4=(int) (yc1+r);
int xc5=(int) (xc1-r);
int yc5=(int)yc1;
if(k==recursion)
g.setColor(Color.yellow);
if(k==recursion-1)
g.setColor(Color.red);
if(k==recursion-2)
g.setColor(Color.green);
if(k==recursion-3)
g.setColor(Color.magenta);
if(k==recursion-4)
g.setColor(Color.BLUE);
if(k==recursion-5)
g.setColor(Color.GRAY);
if(k==recursion-6)
g.setColor(Color.orange);
if(k==recursion-7)
g.setColor(Color.white);
g.drawLine( xc1, yc1, xc2, yc2);
g.drawLine( xc1, yc1, xc3, yc3);
g.drawLine( xc1, yc1, xc4, yc4);
g.drawLine( xc1, yc1, xc5, yc5);
r= (int) (r*0.53);
drawCross(g, xc2, yc2, r,k-1);
drawCross(g, xc3, yc3,r , k - 1);
drawCross(g, xc4, yc4,r , k - 1);
drawCross(g, xc5, yc5,r , k - 1);
}
public void paintComponent(Graphics g)
{
super.paintComponent(g);
drawCross(g,getWidth()/2,getHeight()/2,r,recursion);
}
public static void main(String[] args)
{
CrossFractal cf=new CrossFractal();
}
} |
