Java JPasswordField(String text, int columns) Constructor

Syntax

JPasswordField(String text, int columns) constructor from JPasswordField has the following syntax.

public JPasswordField(String text,    int columns)

Example

In the following code shows how to use JPasswordField.JPasswordField(String text, int columns) constructor.


import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
/* w ww  .ja v  a2  s  .c  o  m*/
import javax.swing.JFrame;
import javax.swing.JPasswordField;

public class Main extends JFrame {
  JPasswordField field = new JPasswordField("*", 10);

  public Main() {
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    field.addActionListener(new ActionListener() {
      public void actionPerformed(ActionEvent e) {
        System.out.println("Field=" + field.getText());
      }
    });

    getContentPane().add(field);
    pack();
    setVisible(true);
  }

  public static void main(String arg[]) {
    new Main();
  }
}