PasswordField

PasswordField in JavaFX is a specialized text input control that hides the typed characters, typically used for entering passwords. Unlike a regular TextField, it masks the input with bullets (•) so that others cannot see what the user types.

Example: Simple Password Input

FXML (hello-view.fxml)

<?xml version="1.0" encoding="UTF-8"?>

<?import javafx.scene.control.PasswordField?>
<?import javafx.scene.control.Button?>
<?import javafx.scene.layout.VBox?>

<VBox spacing="10" alignment="CENTER"
      xmlns="http://javafx.com/javafx/17"
      xmlns:fx="http://javafx.com/fxml/1"
      fx:controller="org.example.demo.HelloController">

    <PasswordField fx:id="passwordField" promptText="Enter your password"/>
    <Button text="Submit" onAction="#handleSubmit"/>
</VBox>

Controller (HelloController.java)

package org.example.demo;

import javafx.fxml.FXML;
import javafx.scene.control.PasswordField;

public class HelloController {

    @FXML
    private PasswordField passwordField;

    @FXML
    private void handleSubmit() {
        String password = passwordField.getText();
        System.out.println("Entered password: " + password);
    }
}

How It Works

1. PasswordField behaves like a regular TextField, but the input is masked.
2. promptText is optional—it shows a placeholder until the user types something.
3. You can read the input using passwordField.getText().

✅ Tip: PasswordField doesn’t prevent copying or programmatically reading the value—so for real security, always hash the password before storing or transmitting it.