Update src/main/java/dev/sillyangel/calc/Calculator.java

src/main/java/dev/sillyangel/calc/Calculator.java

@@ -11,6 +11,8 @@ import javax.swing.JTextField;
 import java.awt.GridLayout;
 import javax.swing.JButton;
 import java.awt.event.ActionListener;
+import java.awt.event.KeyEvent;
+import java.awt.event.KeyListener;
 import java.awt.event.ActionEvent;
 import java.awt.Color;
 import java.awt.Font;
@@ -20,7 +22,8 @@ import javax.swing.JMenu;
 import javax.swing.JMenuItem;
 
 
-public class Calculator extends JFrame {
+
+public class Calculator extends JFrame implements KeyListener {
 
 	private static final long serialVersionUID = 1L;
 	private JPanel contentPane;
@@ -67,16 +70,19 @@ public class Calculator extends JFrame {
 	    
 	    exitItem.addActionListener(e -> System.exit(0));
 	    
-	    fileMenu.add(exitItem);
-	    menuBar.add(fileMenu);
-		
 		setJMenuBar(menuBar);
-
+		setFocusable(true);
+        setFocusTraversalKeysEnabled(false);
+        
+        fileMenu.add(exitItem);
+	    menuBar.add(fileMenu);
+        
 		contentPane = new JPanel();
 		contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
 		setContentPane(contentPane);
 		
 		display = new JTextField();
+		display.addKeyListener(this);
 		display.setForeground(new Color(30, 144, 255));
 		display.setBackground(new Color(255, 255, 255));
 		display.setEditable(false);
@@ -365,4 +371,25 @@ public class Calculator extends JFrame {
 		operator = actionCommand;
 		display.setText("");
 	}
+
+    // Implement the keyPressed method
+    @Override
+    public void keyPressed(KeyEvent e) {
+        int keyCode = e.getKeyCode();
+//        System.out.println("Key Pressed: " + KeyEvent.getKeyText(keyCode));
+    }
+
+    // Implement the keyReleased method
+    @Override
+    public void keyReleased(KeyEvent e) {
+        int keyCode = e.getKeyCode();
+//        System.out.println("Key Released: " + KeyEvent.getKeyText(keyCode));
+    }
+
+    // Implement the keyTyped method
+    @Override
+    public void keyTyped(KeyEvent e) {
+        char keyChar = e.getKeyChar();
+//        System.out.println("Key Typed: " + keyChar);
+    }
 }