Initial Commit

CustomJPanel/Main.java

@@ -0,0 +1,15 @@
+package CustomJPanel;
+
+import javax.swing.JFrame;
+
+public class Main {
+    public static void main(String[] args) {
+        JFrame jframe = new JFrame("My Custom JPanel Counter GUI");
+
+        jframe.setSize(300, 200);
+
+        jframe.add(new MyJPanel());
+
+        jframe.setVisible(true);
+    }
+}

CustomJPanel/MyJPanel.java

@@ -0,0 +1,29 @@
+package CustomJPanel;
+
+import java.awt.FlowLayout;
+
+import javax.swing.JButton;
+import javax.swing.JPanel;
+
+public class MyJPanel extends JPanel {
+    private int counter;
+
+    public MyJPanel() {
+        super();
+
+        counter = 0;
+
+        this.setLayout(new FlowLayout(FlowLayout.CENTER));
+        this.setSize(300, 200);
+
+        JButton button = new JButton();
+        button.setText("Click Me!");
+        button.addActionListener((v) -> {
+            counter += 1;
+
+            button.setText("You've clicked the button " + counter + " times!");
+        });
+
+        this.add(button);
+    }
+}