import javax.swing.JCheckBox;
import javax.swing.JFrame;
 
class MainWindow extends JFrame {
 
    JCheckBox check1 = new JCheckBox();
    public MainWindow() {
        this.check1.setText("alma");
 
        this.add(check1);
        this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        this.setSize(300, 200);
        this.setVisible(true);
    }
	public static void main(String[] args){
		new MainWindow();
	}
}