import javax.swing.*;

public class KeyboardWindow {
    JFrame frame;
    KeyboardWindow() {
        frame = new JFrame();
        frame.setSize(300, 200);
        frame.setVisible(true);
        frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
        frame.setTitle("Use korean input method");
        frame.add(new JTextArea());


    }

    public static void main(String[] args) {
        SwingUtilities.invokeLater(KeyboardWindow::new);
    }
}