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import java.awt.*;
import javax.swing.JFrame;



public class DrawApp{                           // Main App
    public static void main(String[] args){
        Draw window = new Draw( "This is a JFrame" , 300 , 300 );
    }
}



class Draw extends JFrame{  //Draw Class
    
    private String title;
    private int height;
    private int width;
    Image trophy;
    
    
    Draw( String title , int width , int height ){  //Draw Class Constructor
        this.title = title;
        this.width = width;
        this.height = height;
        
        setTitle( this.title );
        setSize( this.width , this.height );
        setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
        
        setVisible( true );
        
        trophy = getImage( "trophy.png" ); // Call to custom "getImage" method
    }
    
    
    public void paint( Graphics g ){  //Paint Method, uses Graphics object

        g.drawImage( trophy , 125 , 125 , this );
        
    }
    
    
    public Image getImage( String img ){  //Custom "getImage" method
     
       return Toolkit.getDefaultToolkit().getImage( img );
 
    }
    
}

import java.awt.*;
import javax.swing.JFrame;

public class myMain{                           // Main App
    public static void main(String[] args){
        draw window = new draw( "This is a JFrame" , 500 , 500 );
        window.repaint();
    }
}

public class Lgen                            //creates the Lindenmayer system string
{

	String godstring;
	Lgen(String seed)
	{
		godstring=seed;
	}
	public void iterate()
	{
		String demigodstring=godstring;
		godstring="";
		for(int index=0;index<demigodstring.length();index++)
		{
			char F = 70;
			char Plus=43;
			char minus=45;
			char lbrack=91;
			char rbrack=93;
			if (demigodstring.charAt(index)==F)
				godstring+="FF-[-F+F+F]+[+F-F-F]";
			else if (demigodstring.charAt(index)==Plus)
				godstring+="+";
			else if (demigodstring.charAt(index)==minus)
				godstring+="-";
			else if (demigodstring.charAt(index)==lbrack)
				godstring+="[";
			else if (demigodstring.charAt(index)==rbrack)
				godstring+="]";
		}
	}
	public String get_system()
	{
		return godstring;
	}
}

public class turtle 							//for turtle graphics
{
	public double x;
	public double y;
	public double angle;

	turtle(double x, double y, double angle)
	{
		this.x=x;
		this.y=y;
		this.angle=angle;
	}
	turtle(turtle value)
	{
		x=value.x;
		y=value.y;
		angle=value.angle;
	}

	public void move(double dist)
	{
		x+=Math.cos(angle)*dist;
		y+=Math.sin(angle)*dist;
	}
	public Graphics move(Graphics g, double dist)
	{
		double x2=x;
		double y2=y;
		x+=Math.cos(angle)*dist;
		y+=Math.sin(angle)*dist;
		g.drawLine((int)x, (int)y, (int)x2, (int)y2);
		return g;
	}
	public void turn(double angle)
	{
		this.angle+=angle;
		this.angle=wrapval(this.angle);
	}
	
	private double wrapval(double num)
	{
		if(num>0)
		{
			num=num%360;
		}
		else
		{
			num=360-num%360;
		}
		return num;
	}
	
}
    public class dynamic_turtle //dynamic array of "turtles"
    {
    
       private turtle[] data;
       private turtle voidturtle=new turtle((double)0,(double)0,(double)0);
       public dynamic_turtle() 
       {
          data = new turtle[1]; 
       }
       
       public turtle get(int position) 
       {
          if (position >= data.length)
             return voidturtle;
          else
             return data[position];
       }
       
       public void put(int position, turtle value) 
       {
          if (position >= data.length) 
          {

             int newSize = 2 * data.length;
             if (position >= newSize)
                  newSize = 2 * position;
             turtle[] newData = new turtle[newSize];
             System.arraycopy(data, 0, newData, 0, data.length);
             data = newData;
          }
          data[position] = new turtle(value.x,value.y,value.angle);
       }
       public void delete(int position)
       {
           if (position <= data.length) 
           {
        	  if(position>0)
        	  {
	              turtle[] newData = new turtle[data.length];
	              System.arraycopy(data, 0, newData, 0, position-1);
	              System.arraycopy(data,position+1,newData,position,data.length-position-1);
	              data = newData;
        	  }  
        	  else if (position==0)
        	  {
        		  turtle[] newData = new turtle[data.length];
	              System.arraycopy(data, 1, newData, 0, data.length-1);
	              data=newData;
        	  }
           }
       }
    
    } 
    
public class turtlestack //so that the array can be accessed like a stack.
{
	dynamic_turtle stack;
	int currentpos;
	private turtle voidturtle=new turtle((double)0,(double)0,(double)0);
    
	turtlestack()
	{
		stack=new dynamic_turtle();
		currentpos=-1;
	}
	public void add_to_stack(turtle value)
	{
		currentpos+=1;
		stack.put(currentpos, value);
	}
	public turtle get_from_stack()
	{
		System.out.println(currentpos);
		if (currentpos>-1)
		{
			turtle value=stack.get(currentpos);
			currentpos-=1;
			
			
			return value;
			
		}
		else
		{
			return voidturtle;
		}
	}
}

public class drawSystem //Draws the system to the screen
{
	private final double DEG_TO_RAD=Math.PI/180.0;
	Graphics g;
	double dist;
	String system;
	turtle godTurtle;
	turtlestack stack;
	drawSystem(Graphics g, String system, double dist, int startx, int starty)
	{
		this.g=g;
		this.system=system;
		this.dist=dist;
		godTurtle=new turtle((double)startx,(double)starty,270*DEG_TO_RAD);
		stack=new turtlestack();
	}
	public Graphics Draw()
	{
		int l = system.length();
		for(int index=0;index<l;index++)
		{
			char F = 70;
			char Plus=43;
			char minus=45;
			char lbrack=91;
			char rbrack=93;
			if (system.charAt(index)==F)
			{
				g=godTurtle.move(g,dist);
			}
			else if (system.charAt(index)==Plus)
			{
				godTurtle.turn(22.5*DEG_TO_RAD);
			}
			else if (system.charAt(index)==minus)
			{
				godTurtle.turn(-22.5*DEG_TO_RAD);
			}
			else if (system.charAt(index)==lbrack)
			{
				stack.add_to_stack(godTurtle);
			}
			else if (system.charAt(index)==rbrack)
			{
				godTurtle=stack.get_from_stack();
			}

		}
		return g;
	}
}


class draw extends JFrame //creates the screen
{  //Draw Class
    
    private String title;
    private int height;
    private int width;
    Image trophy;
    Lgen mysys;
    
    draw( String title , int width , int height ){  //Draw Class Constructor
        this.title = title;
        this.width = width;
        this.height = height;
        
        setTitle( this.title );
        setSize( this.width , this.height );
        setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
        
        setVisible( true );
        mysys=new Lgen("F");
        for(int a=1;a<6;a++)
        {
        	mysys.iterate();
        }

       
    }
    
    
    public void paint( Graphics g )
    {  //Paint Method, uses Graphics object
        drawSystem mydraw=new drawSystem(g,mysys.get_system(),4.0,width/2,height);
        System.out.println(mysys.get_system());
        g=mydraw.Draw();
        
    }

    
}