如何設置javafx TextArea的高度和寬度？

Question

TextArea txt = new TextArea(); 

我打電話來設置這個textarea的高度和寬度的方法是什麼？

Answer 1

setPrefColumnCount（）和setPrefRowCount（）工作

Answer 2

TextArea textArea = new TextArea(); //making a TexrArea object 
double height = 400; //making a variable called height with a value 400 
double width = 300; //making a variable called height with a value 300 

//You can use these methods 
textArea.setPrefHeight(height); //sets height of the TextArea to 400 pixels 
textArea.setPrefWidth(width); //sets width of the TextArea to 300 pixels