In JavaFX, the Image class represents an image that can be displayed on the screen. You can use it to load images from a file or from a URL, and display them in an ImageView object. Here's an example of how to create and use an Image object:

import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.image.Image;
import javafx.scene.image.ImageView;
import javafx.scene.layout.Pane;
import javafx.stage.Stage;

public class MyJavaFXApp extends Application {
    
    @Override
    public void start(Stage primaryStage) {
        // Load an image from a file
        Image image = new Image("file:myimage.jpg");
        
        // Create an ImageView object and set the image on it
        ImageView imageView = new ImageView(image);
        
        // Create a pane and add the ImageView to it
        Pane pane = new Pane();
        pane.getChildren().add(imageView);
        
        // Create a scene and set it on the stage
        Scene scene = new Scene(pane, 300, 250);
        primaryStage.setScene(scene);
        
        // Show the stage
        primaryStage.show();
    }
    
    public static void main(String[] args) {
        launch(args);
    }
}

In this example, we load an image from a file named myimage.jpg using the Image constructor. We then create an ImageView object and set the Image object as its content. Finally, we create a Pane object and add the ImageView to it, and set the Pane object as the content of the Scene object, which is displayed on the screen. You can also load images from a URL by passing the URL string to the Image constructor.