[error] No enclosing instance of type RobotTest is accessible

[jon80]

I'm having a bit of trouble with this code, any ideas?

:confused:

package homenetwork.bkr.training;

import java.awt.*;
import java.awt.event.*;
import java.awt.image.*;
import javax.swing.*;

public class RobotTest {
		public static void main (String[] args)
		{
			EventQueue.invokeLater(new Runnable()
			{
				public void run()
				{
					//make frame with a button panel
					[B]ButtonFrame frame = new ButtonFrame();[/B]
//Error: ButtonFrame cannot be resolved to a type
					frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
					frame.setVisible(true);
					
					//attach a robot to the screen device
					GraphicsEnvironment environment = GraphicsEnvironment.getLocalGraphicsEnvironment();
					GraphicsDevice screen = environment.getDefaultScreenDevice();
					
					try
					{
						Robot robot = new Robot(screen);
						runTest(robot);
					}
					catch (AWTException e)
					{
						e.printStackTrace();
					}
				}
			}
			);
		}
		
		/** Runs a sample test procedure.
		 * @param robot: the robot attached to the screen device.
		 */
		public static void runTest(Robot robot)
		{
			//simulate a space bar press
			robot.keyPress(' ');
			robot.keyRelease(' '); //TODO try using the key codes.  what key codes should I use?
			
			//simulate a mouse click over the rightmost button
			robot.delay(2000);
			robot.mouseMove(200, 50);
			robot.mousePress(InputEvent.BUTTON1_MASK);
			robot.mouseRelease(InputEvent.BUTTON1_MASK);
			
			//capture the screen and show the resulting image
			robot.delay(2000);
			BufferedImage image = robot.createScreenCapture(new Rectangle(0,0,400,300));
			
			[B]ImageFrame frame = new ImageFrame(image);[/B]
//Error: No enclosing instance of type RobotTest is accessible. Must qualify the allocation with an enclosing instance of type RobotTest (e.g. x.new A() where x is an instance of RobotTest).

			frame.setVisible(true);
		}

		/** A frame to display a captured image
		 */
		@SuppressWarnings("serial")
		class ImageFrame extends JFrame
		{
			/**
			 * @param image: the image to display
			 */
			public ImageFrame (Image image)
			{
				setTitle("Capture");
				setSize(DEFAULT_WIDTH, DEFAULT_HEIGHT);
				
				JLabel label = new JLabel(new ImageIcon(image));
				add(label);
			}
			
			public static final int DEFAULT_WIDTH = 450;
			public static final int DEFAULT_HEIGHT = 350;
		}
}

[B]ButtonFrame.java[/B]
package homenetwork.bkr.training;
import java.awt.Color;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.*;

@SuppressWarnings("serial")
public class ButtonFrame extends JFrame {
	
	public ButtonFrame() {
		setTitle("ButtonTest");
		setSize(DEFAULT_WIDTH, DEFAULT_HEIGHT);
		
		//create buttons
		JButton yellowButton = new JButton("Yellow");
		JButton blueButton = new JButton("Blue");
		JButton redButton = new JButton("Red");
		
		JPanel buttonPanel = new JPanel();  //creates panel (1)
		if (debug) System.out.println("DEBUG create: buttonPanel=" + buttonPanel.toString());
		
		//add buttons to panel
		buttonPanel.add(yellowButton);
		buttonPanel.add(blueButton);
		buttonPanel.add(redButton);
		
		//add panel to frame
		add(buttonPanel);
		
		//create button Actions
		ColorAction yellowAction = new ColorAction(Color.yellow);
		ColorAction blueAction = new ColorAction(Color.blue);
		ColorAction redAction = new ColorAction(Color.red);
		
		//associate actions with buttons
		yellowButton.addActionListener(yellowAction);
		blueButton.addActionListener(blueAction);
		redButton.addActionListener(redAction);
	}
	
	public class ColorAction implements ActionListener {

		public ColorAction (Color c)
		{
			backgroundColor = c;
		}
		
		public void actionPerformed(ActionEvent event) {
			  
			if (buttonPanel != null)
			buttonPanel.setBackground(backgroundColor);
			else if ((debug) && (buttonPanel != null)) System.out.println("DEBUG :" + buttonPanel.toString());
			else if ((debug) && (buttonPanel == null)) System.out.println("DEBUG : buttonPanel==null");
			
			//FIX here I should change the color I think
			//Color c = (Color) getValue("color");
			if (debug) System.out.println("DEBUG: backgroundColor=" + this.backgroundColor.toString());
		}
		
		private Color backgroundColor;

	}
		
		private static final int DEFAULT_WIDTH=300;
		private static final int DEFAULT_HEIGHT=70;
		protected JPanel buttonPanel;
		private boolean debug = true;
}

Error (without ButtonFrame class):
Exception in thread "main" java.lang.Error: Unresolved compilation problems:
ButtonFrame cannot be resolved to a type
ButtonFrame cannot be resolved to a type

at homenetwork.bkr.training.RobotTest.main(RobotTest. java:16)

Error
DEBUG create: buttonPanel=javax.swing.JPanel[,0,0,0x0,invalid,layout=java.awt.FlowLayout,alignm entX=0.0,alignmentY=0.0,border=,flags=9,maximumSiz e=,minimumSize=,preferredSize=]
Exception in thread "AWT-EventQueue-0" java.lang.Error: Unresolved compilation problem:
No enclosing instance of type RobotTest is accessible. Must qualify the allocation with an enclosing instance of type RobotTest (e.g. x.new A() where x is an instance of RobotTest).

at homenetwork.bkr.training.RobotTest.runTest(RobotTe st.java:57)
at homenetwork.bkr.training.RobotTest$1.run(RobotTest .java:27)
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilter s(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(U nknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarch y(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)

[Singing Boyo]

Try making ImageFrame static. You cannot access a non-static inner class from within a static method. Also, if you are posting multiple classes, please place them within separate code tags. It makes it much easier to find different classes.

A sample post:


The FirstClass class:

My first class

The SecondClass class:

My Second Class