Java JButton(String text) Constructor

@ConstructorProperties(value ="text")public JButton(String text)

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import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;

public class Main extends JPanel {

  public Main() {
    JButton btn1 = new JButton("Button1");
    JButton btn2 = new JButton("Button2");
    JButton btn3 = new JButton("Button3");
    JButton btn4 = new JButton("Button4");
    JButton btn5 = new JButton("Button5");
    JButton btn6 = new JButton("Button6");

    add(btn1);
    add(btn2);
    add(btn3);
    add(btn4);
    add(btn5);
    add(btn6);

  }

  public static void main(String[] args) {
    JFrame frame = new JFrame();
    frame.getContentPane().add(new Main());

    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setSize(200, 200);
    frame.setVisible(true);
  }
}