import java.awt.*;

public class DialogTest {

    Frame f = new Frame("test");

    Dialog d1 = new Dialog(f, "model dialog", true);

    Dialog d2 = new Dialog(f, "non-model dialog", false);

    Button b1 = new Button("open model dialog");

    Button b2 = new Button("open non-model dialog");

    public void init(){

        d1.setBounds(,,,);

        d2.setBounds(,,,);

        b1.addActionListener(e -> d1.setVisible(true));

        b2.addActionListener(e -> d2.setVisible(true));

        f.add(b1);

        f.add(b2,BorderLayout.SOUTH);

        f.pack();

        f.setVisible(true);

    }

    public static void main(String[] args) {

        new DialogTest().init();

    }

}