title: FlowLayout.CENTER not centering the components
body: <p>I was using FlowLayout.CENTER to center a string and some checkboxes but it is not centering them. I've used this before and it worked fine. Here is the code:</p>
  
  <pre><code>import javax.swing.*;
  import java.awt.*;
  
  public class pizza extends JFrame {
  //row 1
    JPanel row1 = new JPanel();
    JLabel select = new JLabel("Please select the size you would like"); 
  //row 2
    JPanel row2 = new JPanel();
    JCheckBox ninein = new JCheckBox("9 inch, $5.00", false);
    JCheckBox twelvein = new JCheckBox("12 inch, $10.00", false);
    JCheckBox seventeenin = new JCheckBox("17 inch, $15.00", false);
  //row 3
    JPanel row3 = new JPanel();
    JLabel toppingslab = new JLabel("Please select your toppings");
    JCheckBox cheese = new JCheckBox("Cheese, .50");
    JCheckBox pepperoni = new JCheckBox("Pepperoni, .50");
    JCheckBox onions = new JCheckBox("Onions, .50");
    JCheckBox peppers = new JCheckBox("Peppers, .50");
    JCheckBox bacon = new JCheckBox("Bacon! Free (because it's bacon)");
  //row4
    JPanel row4 = new JPanel();
    JLabel totallab = new JLabel("Total");
    JTextField total = new JTextField(10);
  
  public pizza(){
      setTitle("Pizza Ordering");
      setSize(500,500);
      setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
      setVisible(true);
    total.setEnabled(false);
  
  FlowLayout one = new FlowLayout(FlowLayout.CENTER);
    setLayout(one);
  
    row1.add(select);
    add(row1);
  
    row2.add(ninein);
    row2.add(twelvein);
    row2.add(seventeenin); 
    add(row2);
  
  GridLayout two = new GridLayout(6,2);
    row3.setLayout(two);
  
    row3.add(toppingslab);
    row3.add(cheese);
    row3.add(pepperoni);
    row3.add(onions);
    row3.add(peppers);
    row3.add(bacon);
    add(row3);
  
  FlowLayout three = new FlowLayout(FlowLayout.RIGHT);
    setLayout(three);
  
    row4.add(totallab);
    row4.add(total);
    add(row4);  
      } 
  public static void main(String[] args) {
      pizza pizz = new pizza();
  }
  }
  </code></pre>
  
  <p>Neither RIGHT or LEFT make a difference as well it simply aligns it to the right.</p>