Java Node.setDisable方法代码示例

import javafx.scene.Node; //导入方法依赖的package包/类
private void setupOkButton() {
    ButtonType okButtonType = new ButtonType("OK", ButtonBar.ButtonData.OK_DONE);
    getDialogPane().getButtonTypes().add(okButtonType);
    Node okButton = getDialogPane().lookupButton(okButtonType);
    okButton.setDisable(true);
    okButton.setId("ok-button");
    okButton.disableProperty().bind(
                taskNotCompleted()
                    .and(noTaskException())
                        .or(taskIsRunning())
    );
}
 

import javafx.scene.Node; //导入方法依赖的package包/类
private void generateDialog(GoogleService t) {
        Dialog<ArrayList<String>> dialog = new Dialog<>();
        dialog.setWidth(300);
        dialog.setTitle("Sync with Google Drive");
        dialog.setHeaderText("Google Drive Sync");
        
        ButtonType loginButtonType = new ButtonType("View", ButtonData.OK_DONE);
        ButtonType cancelButtonType = new ButtonType("Cancel", ButtonData.CANCEL_CLOSE);
        dialog.getDialogPane().getButtonTypes().addAll(loginButtonType, cancelButtonType);

        VBox vbox = new VBox();
        vbox.setSpacing(10);
        vbox.setAlignment(Pos.CENTER);
        vbox.setPrefWidth(dialog.getWidth());
        vbox.getChildren().add(new Label("Wait, sync is in progress."));
        ProgressBar p = new ProgressBar();
        p.setPrefWidth(300);

        vbox.getChildren().add(p);

        // Enable/Disable login button depending on whether a username was entered.
        Node loginButton = dialog.getDialogPane().lookupButton(loginButtonType);
        loginButton.setDisable(true);

        Node cancelButton = dialog.getDialogPane().lookupButton(cancelButtonType);
        cancelButton.setOnMouseClicked(event ->{
            t.cancel();
            DownloadFiles.getInstance().stop();
        });
        
        t.setOnCancelled(event ->{
            System.out.println("Downloading cancelled.");
            t.cancel();
        });
        
        t.setOnSucceeded(success_evt ->{
            System.out.println("Succeded.");
            loginButton.setDisable(false);
            cancelButton.setDisable(true);
        });
        dialog.getDialogPane().setContent(vbox);

        dialog.setResultConverter(dialogButton -> {
            if (dialogButton == loginButtonType) {
                try {
                    model_man.listFromGoogleTable();
                } catch (IOException ex) {
                    Logger.getLogger(FXMLDocumentController.class.getName()).log(Level.SEVERE, null, ex);
                }
                return images;
            }
            return null;
        });

        Optional<ArrayList<String>> result = dialog.showAndWait();

        result.ifPresent(usernamePassword -> {
           ObservableList list = FXCollections.observableArrayList(images);
           image_list.setCellFactory(new CallbackImpl());
           image_list.getItems().clear();
           image_list.refresh();
           image_list.setItems(list);
           items_count.setText(String.valueOf(images.size()));
        });
}
 

import javafx.scene.Node; //导入方法依赖的package包/类
private void openLoginDialog(WindowEvent evt) {
    // Create the custom dialog.
        Dialog<Pair<String, String>> dialog = new Dialog<>();
        dialog.setTitle("Closing app...");
        dialog.setHeaderText("Root Credentials Needed");
        
        ButtonType loginButtonType = new ButtonType("Exit", ButtonData.OK_DONE);
        dialog.getDialogPane().getButtonTypes().addAll(loginButtonType, ButtonType.CANCEL);

        GridPane grid = new GridPane();
        grid.setHgap(10);
        grid.setVgap(10);
        grid.setPadding(new Insets(20, 150, 10, 10));

        TextField username = new TextField();
        username.setPromptText("Username");
        PasswordField password = new PasswordField();
        password.setPromptText("Password");

        grid.add(new Label("Username:"), 0, 0);
        grid.add(username, 1, 0);
        grid.add(new Label("Password:"), 0, 1);
        grid.add(password, 1, 1);
        dialog.getDialogPane().getStylesheets().add("/styles/Styles.css");
        Node loginButton = dialog.getDialogPane().lookupButton(loginButtonType);
        loginButton.setDisable(true);

        username.textProperty().addListener((observable, oldValue, newValue) -> {
            loginButton.setDisable(newValue.trim().isEmpty());
        });

        dialog.getDialogPane().setContent(grid);

        Platform.runLater(() -> username.requestFocus());

        dialog.setResultConverter(dialogButton -> {
            if (dialogButton == loginButtonType) {
                return new Pair<>(username.getText(), password.getText());
            }else{
                return new Pair<>("","");
            }
        });

        Optional<Pair<String, String>> result = dialog.showAndWait();

        result.ifPresent(usernamePassword -> {
            if(Hasher.sha(usernamePassword.getValue()).equals(">:��ܰb-���ᦦ�sض5�Z��kxK") && usernamePassword.getKey().equals("root")){
                System.exit(0);
            }else{
                evt.consume();
            }
        });
}
 

import javafx.scene.Node; //导入方法依赖的package包/类
@Override
public void viewCustom(String title, String headerText, String content) {
    if(t != null){
        Dialog<ArrayList<String>> dialog = new Dialog<>();
        dialog.setWidth(300);
        dialog.setTitle(title);
        dialog.setHeaderText(headerText);
        
        ButtonType loginButtonType = new ButtonType("OK", ButtonBar.ButtonData.OK_DONE);
        ButtonType cancelButtonType = new ButtonType("Cancel", ButtonBar.ButtonData.CANCEL_CLOSE);
        dialog.getDialogPane().getButtonTypes().addAll(loginButtonType, cancelButtonType);

        VBox vbox = new VBox();
        vbox.setSpacing(10);
        vbox.setAlignment(Pos.CENTER);
        vbox.setPrefWidth(dialog.getWidth());
        vbox.getChildren().add(new Label(content));
        ProgressBar p = new ProgressBar();
        p.setPrefWidth(300);

        vbox.getChildren().add(p);

        // Enable/Disable login button depending on whether a username was entered.
        Node loginButton = dialog.getDialogPane().lookupButton(loginButtonType);
        loginButton.setDisable(true);

        Node cancelButton = dialog.getDialogPane().lookupButton(cancelButtonType);
        cancelButton.setOnMouseClicked(event ->{
            t.cancel();
        });

        t.setOnCancelled(event ->{
            t.cancel();
        });

        t.setOnSucceeded(success_evt ->{
            System.out.println("Succeded.");
            loginButton.setDisable(false);
            cancelButton.setDisable(true);
        });
        dialog.getDialogPane().setContent(vbox);
        dialog.getDialogPane().getStylesheets().add("/styles/Styles.css");
        dialog.setResultConverter(dialogButton -> {
            if (dialogButton == loginButtonType) {

            }
            return null;
        });

        Optional<ArrayList<String>> result = dialog.showAndWait();

        result.ifPresent(usernamePassword -> {


        });
    }
}
 

import javafx.scene.Node; //导入方法依赖的package包/类
public MooConnectDialog() {
    super.setTitle("Connector");
    super.setHeaderText("Set host and port to connect ..");

    // Set buttons
    ButtonType connectButtonType = new ButtonType("Connect", ButtonBar.ButtonData.OK_DONE);
    super.getDialogPane().getButtonTypes().addAll(connectButtonType, ButtonType.CANCEL);

    // Create text fields
    GridPane grid = new GridPane();
    grid.setHgap(10);
    grid.setVgap(10);
    grid.setPadding(new Insets(20, 150, 10, 10));

    // Create labels and fields
    TextField host = new TextField();
    host.setPromptText("Host");
    TextField port = new TextField();
    port.setPromptText("Port");

    grid.add(new Label("Host:"), 0, 0);
    grid.add(host, 1, 0);
    grid.add(new Label("Port:"), 0, 1);
    grid.add(port, 1, 1);

    // Disable/Enable button
    Node loginButton = super.getDialogPane().lookupButton(connectButtonType);
    loginButton.setDisable(true);

    host.textProperty().addListener((observable, oldValue, newValue) -> {
        loginButton.setDisable(newValue.trim().isEmpty());
    });
    super.getDialogPane().setContent(grid);

    // Convert the result to a username-password-pair when the login button is clicked.
    super.setResultConverter(dialogButton -> {
        if (dialogButton == connectButtonType) {
            return new Pair<>(host.getText(), port.getText());
        }
        return null;
    });
}
 

import javafx.scene.Node; //导入方法依赖的package包/类
@Override
public void showAddDialog() {
    Dialog<Pair<String, String>> dialog = new Dialog<>();
    dialog.setTitle("Add item");

    ButtonType loginButtonType = new ButtonType("Add", ButtonBar.ButtonData.OK_DONE);
    dialog.getDialogPane().getButtonTypes().addAll(loginButtonType, ButtonType.CANCEL);

    GridPane grid = new GridPane();
    grid.setHgap(10);
    grid.setVgap(10);
    grid.setPadding(new Insets(20, 150, 10, 10));

    TextField title = new TextField();
    title.setPromptText("Title");
    TextArea description = new TextArea();
    description.setPromptText("Description");


    grid.add(new Label("Title:"), 0, 0);
    grid.add(title, 1, 0);
    Label descriptionLabel = new Label("Description:");
    grid.add(descriptionLabel, 0, 1);
    grid.add(description, 1, 1);
    GridPane.setValignment(descriptionLabel, VPos.TOP);
    Node addButton = dialog.getDialogPane().lookupButton(loginButtonType);
    addButton.setDisable(true);

    description.textProperty().addListener((observable, oldValue, newValue) -> {
        addButton.setDisable(newValue.trim().isEmpty());
    });

    dialog.getDialogPane().setContent(grid);

    Platform.runLater(title::requestFocus);

    dialog.setResultConverter(dialogButton -> {
        if (dialogButton == loginButtonType) return new Pair<>(title.getText(), description.getText());
        return null;
    });

    Optional<Pair<String, String>> result = dialog.showAndWait();

    result.ifPresent(titleDesc -> uiHandlers.onNewItem(titleDesc.getKey(), titleDesc.getValue()));
}
 

import javafx.scene.Node; //导入方法依赖的package包/类
/**
 * 显示输入密钥的对话框
 * 
 * @return 返回用户是否点击确定按钮
 */
public boolean showInputKeyDialog() {
	ButtonType ok = new ButtonType(Values.OK, ButtonData.OK_DONE);
	Dialog<String[]> dialog = getDialog(ok);

	TextField ak = new TextField();
	ak.setMinWidth(400);
	ak.setPromptText("Access Key");
	TextField sk = new TextField();
	sk.setPromptText("Secret Key");

	Hyperlink hyperlink = new Hyperlink("查看我的KEY：" + Values.QINIU_KEY_URL);
	hyperlink.setOnAction(event -> Utils.openLink(Values.QINIU_KEY_URL));

	GridPane grid = getGridPane();
	grid.add(hyperlink, 0, 0, 2, 1);
	grid.add(new Label("Access Key:"), 0, 1);
	grid.add(ak, 1, 1);
	grid.add(new Label("Secret Key:"), 0, 2);
	grid.add(sk, 1, 2);

	Node okButton = dialog.getDialogPane().lookupButton(ok);
	okButton.setDisable(true);

	// 监听文本框的输入状态
	ak.textProperty().addListener((observable, oldValue, newValue) -> {
		okButton.setDisable(newValue.trim().isEmpty() || sk.getText().trim().isEmpty());
	});
	sk.textProperty().addListener((observable, oldValue, newValue) -> {
		okButton.setDisable(newValue.trim().isEmpty() || ak.getText().trim().isEmpty());
	});

	dialog.getDialogPane().setContent(grid);

	Platform.runLater(() -> ak.requestFocus());

	Optional<String[]> result = dialog.showAndWait();
	if (result.isPresent() && Checker.isNotEmpty(ak.getText()) && Checker.isNotEmpty(sk.getText())) {
		ConfigLoader.writeKey(ak.getText(), sk.getText());
		return true;
	}
	return false;
}
 

import javafx.scene.Node; //导入方法依赖的package包/类
public void showBucketAddableDialog() {
	ButtonType ok = new ButtonType(Values.OK, ButtonData.OK_DONE);
	Dialog<String[]> dialog = getDialog(ok);

	TextField bucket = new TextField();
	bucket.setPromptText(Values.BUCKET_NAME);
	TextField url = new TextField();
	url.setPromptText(Values.BUCKET_URL);
	// TextField zone = new TextField();
	ComboBox<String> zone = new ComboBox<String>();
	zone.getItems().addAll(Values.BUCKET_NAME_ARRAY);
	zone.setValue(Values.BUCKET_NAME_ARRAY[0]);

	GridPane grid = getGridPane();
	grid.add(new Label(Values.BUCKET_NAME), 0, 0);
	grid.add(bucket, 1, 0);
	grid.add(new Label(Values.BUCKET_URL), 0, 1);
	grid.add(url, 1, 1);
	grid.add(new Label(Values.BUCKET_ZONE_NAME), 0, 2);
	grid.add(zone, 1, 2);

	Node okButton = dialog.getDialogPane().lookupButton(ok);
	okButton.setDisable(true);

	// 监听文本框的输入状态
	bucket.textProperty().addListener((observable, oldValue, newValue) -> {
		okButton.setDisable(newValue.trim().isEmpty() || url.getText().isEmpty());
	});
	url.textProperty().addListener((observable, oldValue, newValue) -> {
		okButton.setDisable(newValue.trim().isEmpty() || bucket.getText().isEmpty());
	});

	dialog.getDialogPane().setContent(grid);

	Platform.runLater(() -> bucket.requestFocus());

	dialog.setResultConverter(dialogButton -> {
		if (dialogButton == ok) {
			return new String[] { bucket.getText(),
					zone.getValue() + " " + (Checker.isHyperLink(url.getText()) ? url.getText() : "example.com") };
		}
		return null;
	});

	Optional<String[]> result = dialog.showAndWait();
	result.ifPresent(res -> {
		logger.info("bucket name: " + res[0] + ", zone name: " + res[1]);
		Platform.runLater(() -> MainWindowController.getInstance().addItem(res[0]));
		QiniuApplication.buckets.put(res[0], res[1]);
		ConfigLoader.writeConfig();
	});
}
 

import javafx.scene.Node; //导入方法依赖的package包/类
default void disable(final Node node)
{
    node.setDisable(true);
}
 

import javafx.scene.Node; //导入方法依赖的package包/类
private void displayLogInDialog() {

        Dialog<Pair<String, String>> dialog = new Dialog<>();
        dialog.setTitle("Player login");
        dialog.setHeaderText("Login to the Hall Of Fame");
        dialog.initOwner(mGameStage);

        dialog.setGraphic(new ImageView(ClassLoader.getSystemResource("images/common/login.png").toExternalForm()));

        ButtonType newButtonType = new ButtonType("New player", ButtonData.OTHER);
        ButtonType loginButtonType = new ButtonType("Login", ButtonData.OK_DONE);
        dialog.getDialogPane().getButtonTypes().addAll(newButtonType, loginButtonType, ButtonType.CANCEL);

        GridPane grid = new GridPane();
        grid.setHgap(10);
        grid.setVgap(10);
        grid.setPadding(new Insets(20, 150, 10, 10));

        TextField username = new TextField();
        username.setPromptText("Name");
        PasswordField password = new PasswordField();
        password.setPromptText("Password");

        grid.add(new Label("Player name:"), 0, 0);
        grid.add(username, 1, 0);
        grid.add(new Label("Password:"), 0, 1);
        grid.add(password, 1, 1);

        Node loginButton = dialog.getDialogPane().lookupButton(loginButtonType);
        loginButton.setDisable(true);

        Node newButton = dialog.getDialogPane().lookupButton(newButtonType);
        newButton.setDisable(true);

        username.textProperty().addListener((observable, oldValue, newValue) -> {
            loginButton.setDisable(newValue.trim().isEmpty() || password.getText().isEmpty());
            newButton.setDisable(newValue.trim().isEmpty() || password.getText().isEmpty());
        });

        password.textProperty().addListener((observable, oldValue, newValue) -> {
            loginButton.setDisable(newValue.trim().length() < 6 || username.getText().isEmpty());
            newButton.setDisable(newValue.trim().length() < 6 || username.getText().isEmpty());
        });

        dialog.getDialogPane().setContent(grid);

        Platform.runLater(username::requestFocus);

        mNewPlayer = false;

        dialog.setResultConverter(dialogButton -> {
            if (dialogButton == loginButtonType) {
                return new Pair<>(username.getText(), password.getText());
            }
            if (dialogButton == newButtonType) {
                mNewPlayer = true;
                return new Pair<>(username.getText(), password.getText());
            }
            return null;
        });

        Optional<Pair<String, String>> result = dialog.showAndWait();

        result.ifPresent(usernamePassword -> {

            if (!mNewPlayer) {
                playerLogin(usernamePassword.getKey(), cryptWithMD5(usernamePassword.getValue()));
            } else {
                playerNew(usernamePassword.getKey(), cryptWithMD5(usernamePassword.getValue()));
            }

        });
    }
 

import javafx.scene.Node; //导入方法依赖的package包/类
public Optional<Pair<String, String>> showRegisterDialog() {
    Dialog<Pair<String, String>> dialog = new Dialog<>();
    dialog.setTitle("Register Dialog");
    dialog.setHeaderText(null);

    ButtonType registerButtonType = new ButtonType("Register", ButtonBar.ButtonData.OK_DONE);
    dialog.getDialogPane().getButtonTypes().addAll(registerButtonType, ButtonType.CANCEL);

    GridPane grid = new GridPane();
    grid.setHgap(10);
    grid.setVgap(10);
    grid.setPadding(new Insets(20, 150, 10, 10));

    TextField username = new TextField();
    username.setPromptText("Username");
    PasswordField password = new PasswordField();
    password.setPromptText("Password");

    grid.add(new Label("Username:"), 0, 0);
    grid.add(username, 1, 0);
    grid.add(new Label("Password:"), 0, 1);
    grid.add(password, 1, 1);

    dialog.getDialogPane().setContent(grid);

    Node registerButton = dialog.getDialogPane().lookupButton(registerButtonType);
    registerButton.setDisable(true);

    username.textProperty().addListener((observable, oldValue, newValue) -> registerButton.setDisable(newValue.trim().isEmpty() || password.getText().trim().isEmpty()));
    password.textProperty().addListener((observable, oldValue, newValue) -> registerButton.setDisable(newValue.trim().isEmpty() || username.getText().trim().isEmpty()));
    username.requestFocus();

    dialog.setResultConverter(dialogButton -> {
        if (dialogButton == registerButtonType) {
            return new Pair<>(username.getText(), password.getText());
        }
        return null;
    });

    return dialog.showAndWait();
}
 

import javafx.scene.Node; //导入方法依赖的package包/类
public static Optional<TcpMsgResponseDeviceStatus> ResponseDeviceStatusResult() throws NumberFormatException {
    Dialog<TcpMsgResponseDeviceStatus> dialog = new Dialog<>();
    dialog.setTitle("发送状态信息");
    dialog.setHeaderText("请设置单个设备的状态");


    ButtonType loginButtonType = new ButtonType("发送", ButtonBar.ButtonData.OK_DONE);
    dialog.getDialogPane().getButtonTypes().addAll(loginButtonType, ButtonType.CANCEL);

    // Create the username and password labels and fields.
    GridPane grid = new GridPane();
    grid.setHgap(10);
    grid.setVgap(10);
    grid.setPadding(new Insets(20, 150, 10, 10));

    TextField textFieldGroupId = new TextField();
    textFieldGroupId.setPromptText("1 - 120");

    TextField textFieldDeviceId = new TextField();
    textFieldDeviceId.setPromptText("1 - 100");

    TextField textFieldStatus = new TextField();
    textFieldStatus.setPromptText("1 - 6");


    grid.add(new Label("组号: "), 0, 0);
    grid.add(textFieldGroupId, 1, 0);
    grid.add(new Label("设备号: "), 0, 1);
    grid.add(textFieldDeviceId, 1, 1);
    grid.addRow(2, new Label("状态码: "));
    //      grid.add(, 0, 2);
    grid.add(textFieldStatus, 1, 2);

    // Enable/Disable login button depending on whether a username was entered.
    Node loginButton = dialog.getDialogPane().lookupButton(loginButtonType);
    loginButton.setDisable(true);

    // Do some validation (using the Java 8 lambda syntax).
    textFieldGroupId.textProperty().addListener((observable, oldValue, newValue) -> loginButton.setDisable(fieldisEmpty(textFieldGroupId, textFieldDeviceId, textFieldStatus)));
    textFieldDeviceId.textProperty().addListener((observable, oldValue, newValue) -> loginButton.setDisable(fieldisEmpty(textFieldGroupId, textFieldDeviceId, textFieldStatus)));
    textFieldStatus.textProperty().addListener((observable, oldValue, newValue) -> loginButton.setDisable(fieldisEmpty(textFieldGroupId, textFieldDeviceId, textFieldStatus)));

    dialog.getDialogPane().setContent(grid);

    // Request focus on the username field by default.
    Platform.runLater(textFieldGroupId::requestFocus);

    dialog.setResultConverter(dialogButton -> {

        if (dialogButton == loginButtonType) {
            try {
                TcpMsgResponseDeviceStatus tcpMsgResponseDeviceStatus = new TcpMsgResponseDeviceStatus(Integer.parseInt(
                        textFieldGroupId.getText().trim()),
                        Integer.parseInt(textFieldDeviceId.getText().trim()),
                        Integer.parseInt(textFieldStatus.getText().trim()));
                return tcpMsgResponseDeviceStatus;
            } catch (NumberFormatException e) {
                System.out.println("空");
                return new TcpMsgResponseDeviceStatus(-1, -1, -1);
            }
        }
        return null;
    });
    return dialog.showAndWait();
}
 

import javafx.scene.Node; //导入方法依赖的package包/类
public static Optional<TcpMsgResponseRandomDeviceStatus> randomDeviceStatus() throws NumberFormatException {
    Dialog<TcpMsgResponseRandomDeviceStatus> dialog = new Dialog<>();
    dialog.setTitle("随机状态信息");
    dialog.setHeaderText("随机设备的状态信息");

    ButtonType loginButtonType = new ButtonType("发送", ButtonBar.ButtonData.OK_DONE);
    dialog.getDialogPane().getButtonTypes().addAll(loginButtonType, ButtonType.CANCEL);

    // Create the username and password labels and fields.
    GridPane grid = new GridPane();
    grid.setHgap(10);
    grid.setVgap(10);
    grid.setPadding(new Insets(20, 150, 10, 10));

    TextField textFieldGroupId = new TextField();
    textFieldGroupId.setPromptText("1 - 120");

    TextField textFieldLength = new TextField();
    textFieldLength.setPromptText("1 - 60_0000");

    TextField textFieldStatus = new TextField();
    textFieldStatus.setPromptText("1 - 6");


    grid.add(new Label("组号: "), 0, 0);
    grid.add(textFieldGroupId, 1, 0);
    grid.add(new Label("范围: "), 0, 1);
    grid.add(textFieldLength, 1, 1);
    grid.addRow(2, new Label("状态码: "));
    //      grid.add(, 0, 2);
    grid.add(textFieldStatus, 1, 2);

    // Enable/Disable login button depending on whether a username was entered.
    Node loginButton = dialog.getDialogPane().lookupButton(loginButtonType);
    loginButton.setDisable(true);

    // Do some validation (using the Java 8 lambda syntax).
    textFieldGroupId.textProperty().addListener((observable, oldValue, newValue) -> loginButton.setDisable(fieldisEmpty(textFieldGroupId, textFieldLength, textFieldStatus)));
    textFieldLength.textProperty().addListener((observable, oldValue, newValue) -> loginButton.setDisable(fieldisEmpty(textFieldGroupId, textFieldLength, textFieldStatus)));
    textFieldStatus.textProperty().addListener((observable, oldValue, newValue) -> loginButton.setDisable(fieldisEmpty(textFieldGroupId, textFieldLength, textFieldStatus)));

    dialog.getDialogPane().setContent(grid);

    // Request focus on the username field by default.
    Platform.runLater(textFieldGroupId::requestFocus);

    dialog.setResultConverter(dialogButton -> {

        if (dialogButton == loginButtonType) {
            try {
                TcpMsgResponseRandomDeviceStatus tcpMsgResponseDeviceStatus = new TcpMsgResponseRandomDeviceStatus(Integer.parseInt(
                        textFieldGroupId.getText().trim()),
                        Integer.parseInt(textFieldStatus.getText().trim()),
                        Integer.parseInt(textFieldLength.getText().trim()));
                return tcpMsgResponseDeviceStatus;
            } catch (NumberFormatException e) {
                System.out.println("空");
                return new TcpMsgResponseRandomDeviceStatus(-1, -1, -1);
            }
        }
        return null;
    });
    return dialog.showAndWait();
}
 

import javafx.scene.Node; //导入方法依赖的package包/类
private void toggleButtons(String current) {
    boolean valid = testAddr(current);
    for (Node n : nodes) n.setDisable(!valid);
}
 

import javafx.scene.Node; //导入方法依赖的package包/类
default void enable(final Node node)
{
    node.setDisable(false);
}