JavaFX load text with more lines in to javafx container

Question

i wanna load text from an external text or xml file in to a javafx container. i dont know which container i should use for this (textarea, with noneditable or label). problem, the file have more than one lines to read. For example: File.txt contains: "Hello

I'm the third row"

I actual use (for text-files) the normal BufferedReader-Code: Possible1:

String text;
while ((text = bufferedReader.readLine()) != null) {
   textlabel_about.setText(text);
}

or Possible2:

textlabel_about.setText(ReadTextfile(file){
StringBuilder stringBuffer = new StringBuilder();
String text;
while ((text = bufferedReader.readLine()) != null) {
      stringBuffer.append(text);
}
return stringBuffer.toString();
);

(Yes i cut the functions - of course i'm using exceptions and so on) But if i run the program i only can see: Possible1: "I'm the third row" Possible2: "HelloI'm the third row"

I only know the function while using the console with system.out.println to get the diffrent lines. So what can i do to show the text in the javafx container in the right formation?

Answer 1

BufferedReader.readLine removes the line breaks. Just add the line breaks back in and use a TextArea:

StringBuilder stringBuilder = new StringBuilder();
String text;
while ((text = bufferedReader.readLine()) != null) {
    stringBuilder.append(text).append("\n");
}
// set the text in the TextArea
your_text_area.setText(stringBuilder.toString());

A TextArea breaks lines that are too wide, but adds a ScrollBar if the content gets too high for the container (does not resize vertically normaly).

Alternatively you can to use javafx.scene.text.Text. Text resizes to the content size by default.