I am Trying to write a Java Program that animates 4 arcs to make it look like a moving fan. As of now I have the arcs drawn and Im trying to make buttons for my slow, med, fast and off settings

Im getting the following errors:
DrawArcs.java:6: cannot find symbol
symbol : class JButton
location: class DrawArcs
private JButton jbtOff = new JButton("Off");

DrawArcs.java:27: cannot find symbol
symbol : class ActionListener
location: class DrawArcs
jbtSlow.addActionListener(new ActionListener(){

Im getting a few more but listing them would be kinda redundant as they refer to the other lines i wrote to create the buttons and action listeners. I figured that If we could solve the first ones the others probably have the same issue.

Any help would be greatly appreciated

import javax.swing.JFrame;
import javax.swing.JPanel;
import java.awt.Graphics;

public class DrawArcs extends JFrame {
   private JButton jbtOff = new JButton("Off");
	private JButton jbtSlow = new JButton("Slow");
	private JButton jbtMed = new JButton("Med");
	private JButton jbtFast = new JButton("Fast");


	public DrawArcs() {
		JPanel arcsPanel = new JPanel();
		setTitle("DrawArcs");
		arcsPanel.add(jbtOff);
		arcsPanel.add(jbtSlow);
		arcsPanel.add(jbtMed);
		arcsPanel.add(jbtFast);
		
		this.add(arcsPanel, BBorderLayout.SOUTH);	
		
		jbtOff.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent e){
			}
		});
		
			jbtSlow.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent e){
			}
		});
		
			jbtMed.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent e){
			}
		});
		
			jbtFast.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent e){
			}
		});
		
	}
		//Main Method
		public static void main(String[]args){
		DrawArcs frame = new DrawArcs();
		frame.setSize(250, 300);
		frame.setLocationRelativeTo(null);
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		frame.setVisible(true);
		
	}	
}

		//Draw Arcs On Panel
		class ArcsPanel extends JPanel {
			protected void paintComponent(Graphics g) {
				super.paintComponent(g);
				
				int xCenter = getWidth() /2;
				int yCenter = getHeight() /2;
				int radius = (int)(Math.min(getWidth(),getHeight())*0.4);
				
				int x = xCenter - radius;
				int y = yCenter - radius;
				
				g.fillArc(x, y, 2*radius, 2*radius, 0, 30);
				g.fillArc(x, y, 2*radius, 2*radius, 90, 30);
				g.fillArc(x, y, 2*radius, 2*radius, 180, 30);
				g.fillArc(x, y, 2*radius, 2*radius, 270, 30);
				
				}
		}

you need to import the classes that the compiler isn't finding. Right not you're only importing 3 classes.

Hi there, am only learning java, but I notice you have not imported the libraries, java.awt.event. I thought this was where the refrence to the action listner was held. If not please can you tell me how you got round it.

Hi there, am only learning java, but I notice you have not imported the libraries, java.awt.event. I thought this was where the refrence to the action listner was held. If not please can you tell me how you got round it.

That Fixed one of them... I completely Restructured how I was adding
the buttons and fixed the other problem

This article has been dead for over six months. Start a new discussion instead.