In this tutorial you will learn about tooltip via simple step by step examples.

Example 1: Simple ToolTip Example

Let us look at a simple tooltip example written in Java Programming Language. Follow the following steps:

Step 1: Create Project

  1. Open your favorite Java IDE.
  2. In the menu go to File --> Create New Project.

Step 2: Add Dependencies

No dependencies are needed for this project.

Step 3: Write Code

Our code will comprise the following Java files:

  • ToolTipExample.java
  1. In your editor or IDE, create a file known as ToolTipExample.java.
  2. Then add the following code:

(a). ToolTipExample.java

Start by adding the following imports:

import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.Tooltip;
import javafx.scene.image.ImageView;
import javafx.scene.layout.HBox;
import javafx.scene.text.TextAlignment;
import javafx.stage.Stage;

Extend the Application class and invoke the launch() function inside the main() function:

public class ToolTipExample extends Application {
    public static void main(String[] args) {
        launch(args);
    }

Override the start() function passing in the primaryStage and setting its title:

    @Override
    public void start(Stage primaryStage) {
        primaryStage.setTitle("JavaFX App");

Instantiate the ToolTip and pass in the Text property:

        Tooltip tooltip1 = new Tooltip("Creates a new file");

You can set it’s minimum width as well as the Text alignment as shown below:

        //tooltip1.setMinWidth(300);
        tooltip1.setTextAlignment(TextAlignment.LEFT);

You can also set an ImageView onto the Tooltip using the setGraphic() property as shown below:

        tooltip1.setGraphic(new ImageView("file:iconmonstr-basketball-1-16.png"));

In this case we are binding the ToolTip to a simple button:

        Button button1 = new Button("New");
        button1.setTooltip(tooltip1);

Here is another example:

        /*
        Button button2 = new Button("Open");
        Tooltip tooltip2 = new Tooltip("Opens an existing file from your local computer");
        button2.setTooltip(tooltip2);
        */

Set the button to a HBox, the set the Scene as well and show Stage:

        HBox hBox = new HBox(button1);
        //HBox hBox = new HBox(button1, button2);
        Scene scene = new Scene(hBox, 960, 600);

        primaryStage.setScene(scene);
        primaryStage.show();
    }

}

Here is the full code:

package com.jenkov.javafx.tooltip;

import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.Tooltip;
import javafx.scene.image.ImageView;
import javafx.scene.layout.HBox;
import javafx.scene.text.TextAlignment;
import javafx.stage.Stage;

public class ToolTipExample extends Application {
    public static void main(String[] args) {
        launch(args);
    }

    @Override
    public void start(Stage primaryStage) {
        primaryStage.setTitle("JavaFX App");

        Tooltip tooltip1 = new Tooltip("Creates a new file");
        //tooltip1.setMinWidth(300);
        tooltip1.setTextAlignment(TextAlignment.LEFT);
        tooltip1.setGraphic(new ImageView("file:iconmonstr-basketball-1-16.png"));

        Button button1 = new Button("New");
        button1.setTooltip(tooltip1);

        /*
        Button button2 = new Button("Open");
        Tooltip tooltip2 = new Tooltip("Opens an existing file from your local computer");
        button2.setTooltip(tooltip2);
        */

        HBox hBox = new HBox(button1);
        //HBox hBox = new HBox(button1, button2);
        Scene scene = new Scene(hBox, 960, 600);

        primaryStage.setScene(scene);
        primaryStage.show();
    }

}

Step 4: Run

Copy the above code, add static main method and from it instantiate the above class and run.

Reference

Here are the reference links:

Number Link
1. Download Example
2. Follow code author
3. Code: Apache 2.0 License