set size of a textarea javafx code example
Example 1: javafx textarea font size
textArea.setStyle("-fx-font-size: 20");
Example 2: javafx textarea how to make smaller
import javafx.scene.control.TextArea;
TextArea textArea = new TextArea(); //making a TextArea object
textArea.setPrefHeight(400); //sets height of the TextArea to 400 pixels
textArea.setPrefWidth(300); //sets width of the TextArea to 300 pixels