FlowLayout.setAlignment(int align) has the following syntax.
public void setAlignment(int align)
In the following code shows how to use FlowLayout.setAlignment(int align) method.
/* w w w . j a va2 s . co m*/ import java.awt.FlowLayout; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JPanel; public class Main extends JPanel { public Main() { FlowLayout flowLayout = new FlowLayout(FlowLayout.RIGHT, 10, 3); setLayout(flowLayout); add(new JButton("w w w.j a v a 2 s . c o m")); add(new JButton("w w w.j a v a 2 s . com")); add(new JButton("w w w.java2s.com")); add(new JButton("www.j ava 2 s . c o m")); flowLayout.setAlignment(FlowLayout.CENTER); } public static void main(String[] args) { JFrame frame = new JFrame(); frame.add(new Main()); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setSize(200, 200); frame.setVisible(true); } }