Creating and incrementing a button in java

Problem:

Create a java panel that shows a button and increments it.

Output:

Solution:

package com.javaproblems.comJButtonDemo;

import javax.swing.JFrame;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JLabel;
import javax.swing.JPanel;

public class PushButtonPanel extends JPanel {

 private JButton pushButton;
 private JLabel outputLabel;
 private int count;
 
 public PushButtonPanel() {
  count = 0;
  outputLabel  = new JLabel("Count: " + count);
  pushButton = new JButton("Push me");
  
  add(pushButton);
  add(outputLabel);
  pushButton.addActionListener(new ButtonListener());
  
  setBackground(Color.cyan);
  setPreferredSize(new Dimension(300,200));
 }

 private class ButtonListener implements ActionListener {
  @Override
  public void actionPerformed(ActionEvent e) {
   count++;
   outputLabel.setText("Count: " + count);
  }
 }
 
}