demos/org.eclipse.fx.xtext.sample.editor/src/org/eclipse/fx/xtext/sample/editor/text/SampleTextArea.java

package org.eclipse.fx.xtext.sample.editor.text;

import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.control.TextArea;
import javafx.scene.layout.BorderPane;
import javafx.stage.Stage;

public class SampleTextArea extends Application {

	@Override
	public void start(Stage primaryStage) throws Exception {
		BorderPane p = new BorderPane();
		
		TextArea t = new TextArea();
		StringBuilder b = new StringBuilder();
		b.append("This is a multiline text\n");
		b.append("This is a multiline text\n");
		b.append("This is a multiline text\n");
		t.setText(b.toString());
		p.setCenter(t);
		
		primaryStage.setScene(new Scene(p));
		primaryStage.show();
	}

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