How to verify the password entered in the JavaFX password field?

Object Oriented ProgrammingProgrammingJavaFX

The text field accepts and displays the text. In the latest versions of JavaFX, it accepts only a single line.

Similar to the text field a password field accepts text but instead of displaying the given text, it hides the typed characters by displaying an echo string.

In JavaFX the javafx.scene.control.PasswordField represents a password field and it inherits the Text class. To create a password field you need to instantiate this class.

This class inherits a property named text from its superclass TextInputControl. This property holds the contents of the current password field. You can retrieve this data using the getText() method.

Example

import javafx.application.Application;
import javafx.geometry.Insets;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.control.PasswordField;
import javafx.scene.control.TextField;
import javafx.scene.layout.HBox;
import javafx.scene.paint.Color;
import javafx.scene.text.Font;
import javafx.scene.text.FontPosture;
import javafx.scene.text.FontWeight;
import javafx.scene.text.Text;
import javafx.stage.Stage;
public class PasswordFieldVerification extends Application {
   public void start(Stage stage) {
      //Creating nodes
      TextField textField = new TextField();
      PasswordField pwdField = new PasswordField();
      Button button = new Button("Submit");
      button.setTranslateX(250);
      button.setTranslateY(75);
      //Creating labels
      Label label1 = new Label("Name: ");
      Label label2 = new Label("Password: ");
      //Setting the message with read data
      Text text = new Text("");
      Font font = Font.font("verdana", FontWeight.BOLD, FontPosture.REGULAR, 10);
      text.setFont(font);
      text.setTranslateX(15);
      text.setTranslateY(125);
      text.setFill(Color.BROWN);
      //Displaying the message
      button.setOnAction(e -> {
         //Retrieving data
         String name = textField.getText();
         String pwd = pwdField.getText();
         if(pwd.equals("abc123")) {
            text.setText("Hello "+name+" welcome to Tutorialspoint");
         } else {
            text.setText("Wrong password try again");
         }
      });
      //Adding labels for nodes
      HBox box = new HBox(5);
      box.setPadding(new Insets(25, 5 , 5, 50));
      box.getChildren().addAll(label1, textField, label2, pwdField);
      Group root = new Group(box, button, text);
      //Setting the stage
      Scene scene = new Scene(root, 595, 150, Color.BEIGE);
      stage.setTitle("Password Field Example");
      stage.setScene(scene);
      stage.show();
   }
   public static void main(String args[]){
      launch(args);
   }
}

Output

Password typed − mypassword

Password typed − abc123

raja
Published on 18-May-2020 09:55:53
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