惠州分享JavaFX密码字段实例_北大青鸟IT学校

Java是现在非常主流的编程语言之一，很多人想转行学习Java。那么下面惠州北大青鸟老师给大家分享JavaFX密码字段的实例，希望对大家的学习有帮助。

实例

密码字段和操作侦听器

/*
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*/import javafx.application.Application;import javafx.event.ActionEvent;import javafx.event.EventHandler;import javafx.geometry.Insets;import javafx.geometry.Pos;import javafx.scene.Group;import javafx.scene.Scene;import javafx.scene.control.Label;import javafx.scene.control.PasswordField;import javafx.scene.layout.HBox;import javafx.scene.layout.VBox;import javafx.scene.paint.Color;import javafx.stage.Stage;public class Main extends Application {  final Label message = new Label("");

 @Override  public void start(Stage stage) {
   Group root = new Group();
   Scene scene = new Scene(root, 260, 80);
   stage.setScene(scene);
   stage.setTitle("Password Field Sample");

   VBox vb = new VBox();
   vb.setPadding(new Insets(10, 0, 0, 10));
   vb.setSpacing(10);
   HBox hb = new HBox();
   hb.setSpacing(10);
   hb.setAlignment(Pos.CENTER_LEFT);

   Label label = new Label("Password");    final PasswordField pb = new PasswordField();

   pb.setOnAction(new EventHandler<ActionEvent>() {
     @Override      public void handle(ActionEvent e) {        if (!pb.getText().equals("abc")) {
         message.setText("Your password is incorrect!");
         message.setTextFill(Color.web("red"));
       } else {
         message.setText("Your password has been confirmed");
         message.setTextFill(Color.web("black"));
       }
       pb.setText("");
     }
   });

   hb.getChildren().addAll(label, pb);
   vb.getChildren().addAll(hb, message);

   scene.setRoot(vb);
   stage.show();
 }  public static void main(String[] args) {
   launch(args);
 }
}

上面的代码生成以下结果。

更多Java资讯关注网站动态，或者来惠州北大青鸟新方舟校区了解一下。

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