I am making a simple program where the user clicks a button and a label displays the number of clicks. This is what I have so far:
import javax.swing.*; import java.awt.*; import java.awt.event.*; public class mainGUI { public static void main(String[] args) { int numOfClicks = 0; JFrame mainWindow = new JFrame("ClickerCounter"); JPanel mainPanel = new JPanel(); JButton clickerBtn = new JButton("Click Here"); JButton clickerReset = new JButton("Reset"); JLabel mainLabel = new JLabel("You have clicked 0 times."); mainWindow.setPreferredSize(new Dimension(400,75)); mainWindow.pack(); mainWindow.setLocationRelativeTo(null); mainWindow.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); mainPanel.add(clickerBtn); mainPanel.add(clickerReset); mainPanel.add(mainLabel); mainWindow.add(mainPanel); mainWindow.setVisible(true); clickerBtn.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent e) { numOfClicks += 1; } }); } } I declared the numOfClicks variable inside the main method, but I get "Local variable numOfClicks defined in an enclosing scope must be final or effectively final". How can I make the numOfClicks variable accessible by the anonymous ActionListener class?
I can't make this variable final as the numOfClicks will be changing throughout the usage of the program.
