[Java] Line2D и Line2D.Double

feliks28

C:\j2sdk\java\my learning\Sketch.java:55: cannot resolve symbol

symbol  : method Double (java.awt.geom.Point2D,java.awt.geom.Point2D)

location: class java.awt.geom.Line2D

		Line2D line = Line2D.Double(last, end);

                                    ^

1 error

Tool completed with exit code 1

puare

feliks28

import javax.swing.JFrame;

import javax.swing.JPanel;

import java.awt.Graphics;

import java.awt.Graphics2D;

import java.awt.geom.Point2D;

import java.awt.geom.Line2D.Double;

import java.awt.geom.Line2D;

import java.util.ArrayList;

import java.awt.event.KeyListener;

import java.awt.event.KeyEvent;

import java.awt.Container;

public class Sketch

{

	public static void main(String[] args)

	{

		SketchFrame frame = new SketchFrame;

		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

		frame.show;

	}

}

class SketchFrame extends JFrame

{

	public SketchFrame

	{

		setTitle("Sketch");

		setSize(DEFAULT_WIDTH, DEFAULT_HEIGHT);

		SketchPanel panel = new SketchPanel;

		Container contentPane = getContentPane;

		contentPane.add(panel);

	}

	public static final int DEFAULT_WIDTH = 300;

	public static final int DEFAULT_HEIGHT = 200;

}

class SketchPanel extends JPanel

{

	public SketchPanel

	{

		last = new Point2D.Double(100, 100);

		lines = new ArrayList;

		KeyHandler listener = new KeyHandler;

		addKeyListener(listener);

		setFocusable(true);

	}

	public void add(int dx, int dy)

	{

		Point2D end = new Point2D.Double(last.getX + dx, last.getY + dy);

		Line2D line = Line2D.Double(last, end);

		lines.add(line);

		repaint;

		last = end;

	}

	public void paintComponent(Graphics g)

	{

		super.paintComponent(g);

		Graphics2D g2 = (Graphics2D)g;

		for(int i = 0; i < lines.size; i++)

		{

			g2.drawLine2D)lines.get(i;

		}

	}

	private Point2D last;

	private ArrayList lines;

	private static final int SMALL_INCREMENT = 1;

	private static final int LARGE_INCREMENT = 5;

	private class KeyHandler implements KeyListener

	{

		public void keyPressed(KeyEvent event)

		{

			int keyCode = event.getKeyCode;

			int d;

			if(event.isShiftDown

				d = LARGE_INCREMENT;

			else

				d = SMALL_INCREMENT;

			if(keyCode == KeyEvent.VK_LEFT) add(-d, 0);

			else if(keyCode == KeyEvent.VK_RIGHT) add(d, 0);

			else if(keyCode == KeyEvent.VK_UP) add(0, -d);

			else if(keyCode == KeyEvent.VK_DOWN) add(0, d);

		 }

		 public void keyReleased(KeyEvent event) {}

		 public void keyTyped(KeyEvent event)

		 {

			 char keyChar = event.getKeyChar;

			 int d;

			 if(Character.isUpperCase(keyChar

			 {

				 d = LARGE_INCREMENT;

				 keyChar = Character.toLowerCase(keyChar);

			 }

			 else

			 	d = SMALL_INCREMENT;

			 if(keyChar == 'a') add(-d, 0);

			 else if(keyChar == 'd') add(d, 0);

			 else if(keyChar == 'w') add(0, -d);

			 else if(keyChar == 's') add(0, -d);

		 }

	 }

 }

puare

feliks28