Set component at center of the page

Question

How can I set a component (say button) at center of the panel?

I used Flowlayout with layout constraint as center, but I am getting button at

Answer 1

Use GridBagLayout instead of FlowLayout.

JPanel panel=new JPanel();
panel.setLayout(new GridBagLayout());
panel.add(new JButton("Sample")); // will use default value of GridBagConstraints