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POerror: method addActionListener in class AbstractButton cannot be applied to given types
 

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  1. POerror: method addActionListener in class AbstractButton cannot be applied to given types
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    <p>I'm trying to add music to my program as to make it sound like a commercial so to say, lol it's in regards to a Pizza company called PizzaPalooza but I am getting a few errors such as </p> <p><code>error: method addActionListener in class AbstractButton cannot be applied to given types</code></p> <p><code>JPizza.java:77: error: incompatible types if(source = playButton) ^ required: boolean found: Object</code></p> <p><code>JPizza.java:69: error: method addActionListener in class AbstractButton cannot be applied to given types; playButton.addActionListener(this); ^ required: ActionListener found: JPizza</code></p> <p>just a few examples, for these I have tried to create a new object of <code>source</code></p> <p>But I do not understand what it means by <code>method addActionListener in class AbstractButton cannot be applied to given types</code></p> <p>For these would I have to redo the entire thing and <code>extend</code> the <code>ActionListener</code>? or can I do it another way? I'm having a difficult time understanding the <code>JApplets</code>.</p> <p>Thanks in Advance!</p> <p>this is the part of the code that is throwing the problems:</p> <pre><code>public void init() { Container Con = getContentPane(); con.setLayout (new FlowLayout()); con.add(listenLabel); con.add(playButton); con.add(stopButton); playButton.addActionListener(this); stopButton.addActionListener(this); music = getAudioClip(getCodeBase(),"business.mid"); } public void actionPerformed(ActionEvent e) { Object source = e.getSource(); if(source = playButton) music.loop(); else music.stop(); } </code></pre> <p>and this is the rest of my code:</p> <pre><code>import javax.swing.*; import java.awt.*; import java.awt.event.*; import java.applet.*; public class JPizza extends JFrame implements ItemListener { FlowLayout flow = new FlowLayout(); JLabel companyName = new JLabel("PizzaPalooza"); JComboBox&lt;String&gt; sizeBox = new JComboBox&lt;String&gt;(); JLabel sizeList = new JLabel("Size List"); JComboBox&lt;String&gt; toppingBox = new JComboBox&lt;String&gt;(); JLabel toppingList = new JLabel("Topping List"); JTextField totPrice = new JTextField(10); JLabel orderName = new JLabel("Name of Order"); JTextField oName = new JTextField(15); JLabel listenLabel = new JLabel("Listen to our theme!"); JButton playButton = new JButton("Play"); JButton stopButton = new JButton("Stop"); AudioClip music; int totalPrice = 0; int sizeNum, toppingNum; int sPrice, tPrice, sumPrice; int[] sizePrice = {0,7,9,11,14}; int[] toppingPrice = {0,0,1,1,1,1}; String output; public JPizza() { super("PizzaPalooza"); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setLayout(flow); add(companyName); companyName.setFont(new Font("Ariel", Font.BOLD, 20)); sizeBox.addItem("None"); sizeBox.addItem("Small"); sizeBox.addItem("Medium"); sizeBox.addItem("Large"); sizeBox.addItem("Extra large"); toppingBox.addItem("None"); toppingBox.addItem("Cheese"); toppingBox.addItem("Sausage"); toppingBox.addItem("Pepperoni"); toppingBox.addItem("Green pepper"); toppingBox.addItem("Onion"); add(sizeList); add(sizeBox); sizeBox.addItemListener(this); add(toppingList); add(toppingBox); toppingBox.addItemListener(this); add(totPrice); add(oName); add(orderName); } public static void main(String[] arguments) { JPizza pframe = new JPizza(); pframe.setSize(380,200); pframe.setVisible(true); } public void init() { Container Con = getContentPane(); con.setLayout (new FlowLayout()); con.add(listenLabel); con.add(playButton); con.add(stopButton); playButton.addActionListener(this); stopButton.addActionListener(this); music = getAudioClip(getCodeBase(),"business.mid"); } public void actionPerformed(ActionEvent e) { Object source = e.getSource(); if(source = playButton) music.loop(); else music.stop(); } public void itemStateChanged(ItemEvent list) { Object source = list.getSource(); if (source == sizeBox) { sizeNum = sizeBox.getSelectedIndex(); sPrice = sizePrice[sizeNum]; sumPrice = sPrice + tPrice; output = "Total Price $" + sumPrice; totPrice.setText(output); } else if (source == toppingBox) { toppingNum = toppingBox.getSelectedIndex(); tPrice = toppingPrice[toppingNum]; sumPrice = sPrice + tPrice; output = "Total Price $" + sumPrice; totPrice.setText(output); } } } </code></pre>
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