Dropdown Box GUI

import javax.swing.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

public class DropDownBox {

    public static void main(String[] args) {
        String[] optionsToChoose = {"Cardio", "Arms", "Legs", "Push", "Pull"};
        JFrame frame = new JFrame(); //Makes window

        JComboBox<String> jComboBox = new JComboBox<>(optionsToChoose); //makes drop down list
        jComboBox.setBounds(50,70,140,20);

        JButton button = new JButton("Done");
        button.setBounds(100,100,90,20);

        JLabel jLabel = new JLabel();
        jLabel.setBounds(90,100,400,100);

        frame.add(button);
        frame.add(jComboBox);
        frame.add(jLabel);

        frame.setLayout(null);
        frame.setSize(350,250);
        frame.setVisible(true);

        button.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                String selectedWorkout = "You selected " + jComboBox.getItemAt(jComboBox.getSelectedIndex());
                jLabel.setText(selectedWorkout);
            }
        });


    }


}