Java Swing - 如何创建JLabel与文本和设置对齐，左，右，中心

import javax.swing.JLabel;
import javax.swing.JOptionPane;

public class Main {
  public static void main(String[] args) {
    JLabel label = new JLabel("Username :", JLabel.RIGHT);

    //JLabel label2 = new JLabel("Password :", JLabel.RIGHT);
    //JLabel label3 = new JLabel("Confirm Password :", JLabel.RIGHT);
    //JLabel label4 = new JLabel("Remember Me!", JLabel.LEFT);
    //JLabel label5 = new JLabel("Hello.", JLabel.CENTER);
        
    JOptionPane.showMessageDialog(null, label);
    
  }
}