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I thought i added my main code in this program but it did not recognize. Am I missing it? I get the error paint.Paintbrush class wasn't found in PaintBrush project. I'm not sure where I can include the main class in the beginning without getting an error being returned. Thank you for any advice or help given.

main class not found

package PaintBrush;

import java.applet.Applet;
import java.awt.BorderLayout;
import java.awt.Button;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.Graphics;
import java.awt.GridLayout;
import java.awt.Label;
import java.awt.Panel;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.event.MouseMotionListener;

/**
 *
 * @author Olive
 */
import java.awt.*;
import java.awt.event.*;
import java.applet.Applet;

public class Paintbrush extends Applet implements MouseListener,
                                                  MouseMotionListener,
                                                  ActionListener
{
   // component declarations
   Button blackButton;
   Button redButton;
   Button greenButton;
   Button blueButton;
   Button penButton;
   Button lineButton;
   Button eraserButton;
   Button clearButton;
   Button squareButton;
   Button ovalButton;
   Button fillSquareButton;
   Button fillOvalButton;
   Label colourTitle;
   Label colourDisplay;
   Label toolTitle;
   Label toolDisplay;

   // required variables to store settings
   Color currentColour;
   int toolType;

   // variables to store interim coordinates
   int oldX = -1;
   int oldY = -1;

   public void init()
   {
      // create all the buttons
      blackButton = new Button("Black");
      redButton = new Button("Red");
      greenButton = new Button("Green");
      blueButton = new Button("Blue");
      penButton = new Button("Pen");
      lineButton = new Button("Line");
      eraserButton = new Button("Eraser");
      clearButton = new Button("Clear");
      squareButton = new Button("Square");
      ovalButton = new Button("Oval");
      fillSquareButton = new Button("F Square");
      fillOvalButton = new Button("F Oval");

      // add action listners for all the buttons
      blackButton.addActionListener(this);
      redButton.addActionListener(this);
      greenButton.addActionListener(this);
      blueButton.addActionListener(this);
      penButton.addActionListener(this);
      lineButton.addActionListener(this);
      eraserButton.addActionListener(this);
      clearButton.addActionListener(this);
      squareButton.addActionListener(this);
      ovalButton.addActionListener(this);
      fillSquareButton.addActionListener(this);
      fillOvalButton.addActionListener(this);

      // create the button bar panel
      Panel buttonPanel = new Panel();
      buttonPanel.setLayout(new GridLayout(6, 2));
      buttonPanel.add(blackButton);
      buttonPanel.add(redButton);
      buttonPanel.add(greenButton);
      buttonPanel.add(blueButton);
      buttonPanel.add(penButton);
      buttonPanel.add(lineButton);
      buttonPanel.add(eraserButton);
      buttonPanel.add(clearButton);
      buttonPanel.add(squareButton);
      buttonPanel.add(ovalButton);
      buttonPanel.add(fillSquareButton);
      buttonPanel.add(fillOvalButton);

      // create the status bar panel
      colourTitle = new Label("Colour: ");
      currentColour = Color.black;
      colourDisplay = new Label("Black");
      toolTitle = new Label("   Selected Tool: ");
      toolType = 0;
      toolDisplay = new Label("Pen (Scribble)");
      Panel statusPanel = new Panel();
      statusPanel.setLayout(new FlowLayout(FlowLayout.CENTER));
      statusPanel.add(colourTitle);
      statusPanel.add(colourDisplay);
      statusPanel.add(toolTitle);
      statusPanel.add(toolDisplay);

      // arrange final panels in a border layout
      this.setLayout(new BorderLayout());
      this.add(buttonPanel, BorderLayout.WEST);
      this.add(statusPanel, BorderLayout.NORTH);

      // add mouse listners to applet
      this.addMouseListener(this);
      this.addMouseMotionListener(this);
   }

   // event handling for when an action occurs (in this case, whenever
   // a button is pressed)
   public void actionPerformed(ActionEvent e)
   {
      // get the local graphics page to draw on
      Graphics page = this.getGraphics();

      // red button pressed: set the current colour to red
      // and update the status display
      if (e.getSource().equals(redButton))
      {
         currentColour = Color.red;
         colourDisplay.setText("Red");
      }

      // blue button pressed: set the current colour to blue
      // and update the status display
      if (e.getSource().equals(blueButton))
      {
         currentColour = Color.blue;
         colourDisplay.setText("Blue");
      }

      // green button pressed: set the current colour to green
      // and update the status display
     if (e.getSource().equals(greenButton))
      {
         currentColour = Color.green;
         colourDisplay.setText("Green");
      }

      // black button pressed: set the current colour to black
      // and update the status display
      if (e.getSource().equals(blackButton))
      {
         currentColour = Color.black;
         colourDisplay.setText("Black");
      }

      // pen button pressed: set the selected tool to '0'
      // and update the status display
      if (e.getSource().equals(penButton))
      {
         toolType = 0;
         toolDisplay.setText("Pen (Scribble)");
      }

      // eraser button pressed: set the selected tool to '1'
      // and update the status display
      if (e.getSource().equals(eraserButton))
      {
         toolType = 1;
         toolDisplay.setText("Eraser");
      }

      // square button pressed: set the selected tool to '2'
      // and update the status display
      if (e.getSource().equals(squareButton))
      {
         toolType = 2;
         toolDisplay.setText("Square");
      }

      // oval button pressed: set the selected tool to '3'
      // and update the status display
      if (e.getSource().equals(ovalButton))
      {
         toolType = 3;
         toolDisplay.setText("Oval");
      }

      // filled square button pressed: set the selected tool to '4'
      // and update the status display
      if (e.getSource().equals(fillSquareButton))
      {
         toolType = 4;
         toolDisplay.setText("Filled Square");
      }

      // filled oval button pressed: set the selected tool to '5'
      // and update the status display
      if (e.getSource().equals(fillOvalButton))
      {
         toolType = 5;
         toolDisplay.setText("Filled Oval");
      }

      // clear button pressed: get the size of the applet and draw
      // a clearing rectangle over it, to clear the screen
      if (e.getSource().equals(clearButton))
      {
         Dimension size = this.getSize();
         page.clearRect(0, 0, size.width, size.height);
      }

      // line button pressed: set the selected tool to '6'
      // and update the status display
      if (e.getSource().equals(lineButton))
      {
         toolType = 6;
         toolDisplay.setText("Line");
      }
   }

   // event handling for when the mouse button is first pressed
   public void mousePressed(MouseEvent e)
   {
      // store the coordinates for future reference
      oldX = e.getX();
      oldY = e.getY();
   }

   // event handling for when the mouse is dragged with the button
   // held down
   public void mouseDragged(MouseEvent e)
   {
      Graphics page = this.getGraphics();

      // scribble tool: draw a line from the old coordinates to the
      // new ones
      if (toolType == 0)
      {
         page.setColor(currentColour);
         page.drawLine(oldX, oldY, e.getX(), e.getY());

         oldX = e.getX();
         oldY = e.getY();
      }

      // eraser tool: clear a small rectangles' worth at the specified
      // coordinate
      if (toolType == 1)
      {
         page.clearRect(e.getX(), e.getY(), 10, 10);
         page.setColor(currentColour);
      }
   }

   // resolve method: used to swap two numbers around so the
   // smaller is always in element 0, and the larger in element
   // 1, of the returned array
   public int[] resolve(int newC, int oldC)
   {
      int start, end;

      if (newC < oldC)
      {
         start = newC;
         end = oldC;
      }
      else
      {
         start = oldC;
         end = newC;
      }

      int[] blah = {start, end};
      return blah;
   }

   // event handling for when the mouse button is released  
   public void mouseReleased(MouseEvent e)
   {
      // get the applet's Graphics page
      Graphics page = this.getGraphics();

      // resolve the coordinates so that the smaller of the x and y
      // coordinates can be picked out easily
      int newX = e.getX();
      int newY = e.getY();
      int[] x = resolve(newX, oldX);
      int[] y = resolve(newY, oldY);

      // tool type 2: draw a rectangle
      if (toolType == 2)
      {
         page.setColor(currentColour);
         page.drawRect(x[0], y[0], (x[1] - x[0]), (y[1] - y[0]));
      }

      // tool type 3: draw an oval
      if (toolType == 3)
      {
         page.setColor(currentColour);
         page.drawOval(x[0], y[0], (x[1] - x[0]), (y[1] - y[0]));
      }

      // tool type 4: draw a filled rectangle
      if (toolType == 4)
      {
         page.setColor(currentColour);
         page.fillRect(x[0], y[0], (x[1] - x[0]), (y[1] - y[0]));
      }

      // tool type 5: draw a filled oval
      if (toolType == 5)
      {
         page.setColor(currentColour);
         page.fillOval(x[0], y[0], (x[1] - x[0]), (y[1] - y[0]));
      }

      // tool type 6: draw the line
      if (toolType == 6)
      {
         page.setColor(currentColour);
         page.drawLine(oldX, oldY, newX, newY);
      }
   }

   // unused methods from listener interfaces
   public void mouseEntered(MouseEvent e) {}
   public void mouseExited(MouseEvent e) {}
   public void mouseMoved(MouseEvent e) {}
   public void mouseClicked(MouseEvent e) {}   
}
Olive Bassey
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1 Answers1

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It looks like you're referencing the Paintbrush class in the paint package but the Paintbrush class itself declares package PaintBrush. You didn't show how you're telling NetBeans what applet to run. But try changing the package statement to package paint and see if that works.

Willis Blackburn
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