java add button
import javax.swing.*; public class button { public static void main(String[] args) { JFrame frame = new JFrame; frame.setSize(400, 400); frame.setVisible(true); frame.setLayout(null); //create button JButton btn = new JButton("ok"); btn.setBounds(150, 200, 50, 50); // Properties of button, size, x, and y. //append button to frame frame.add(btn); }}