Main.java

package net.orekyuu.demo;

import javafx.application.Application;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.concurrent.Worker;
import javafx.scene.web.WebEngine;
import javafx.scene.web.WebView;
import javafx.stage.Stage;

public class Main extends Application {

    public static void main(String[] args) {
        launch(args);
    }

    @Override
    public void start(Stage primaryStage) throws Exception {
        WebView webView = new WebView();
        WebEngine webEngine = webView.getEngine();
        webEngine.setJavaScriptEnabled(true);
        webEngine.getLoadWorker().stateProperty().addListener(
                new ChangeListener<Worker.State>() {
                    public void changed(ObservableValue ov, Worker.State oldState, Worker.State newState) {
                        if (newState == Worker.State.SUCCEEDED) {
                            System.out.println(webEngine.executeScript("$('.tweet-text').text()"));
                        }
                    }
                });
        webEngine.load("https://twitter.com/orekyuu/status/627868877070798848");
    }
}