Javafx TextArea setText method using text files - javafx

Question

Hi I am trying to create a method to be used in the TextArea setText method for javafx.
I am trying to get a method that does this:
public static void setTextArea(String fileName) {
String line;
try {
FileReader fileReader = new FileReader(fileName);
BufferedReader buffer = new BufferedReader(fileReader);
while ((line = buffer.readLine()) != null) {
out.println(line);
}
buffer.close();
} catch //etc etc
but I can't use it in the setText method because it is a void method.
Can anyone help translate this method so it could work in the TextArea setText method?
-Thanks!

Answer 1

You just pring out the lines to System.out I guess. You have to add up the content of the text file by doing something like this
public static void setTextArea(String fileName) {
String line;
String content;
try {
FileReader fileReader = new FileReader(fileName);
BufferedReader buffer = new BufferedReader(fileReader);
while ((line = buffer.readLine()) != null) {
out.println(line);
content += line;
}
buffer.close();
} catch //etc etc
Then you can either return content or call setText(content) from the TextArea class. If it's a big file, then using StringBuilder would probably be a better idea instead of concatenating each line.

Answer 2

You will have to get the data from the file and and set the data to textArea..
TextArea txtArea = new TextArea();
String data = getDataForTextArea(String fileLocation);
txtArea.setText(data);
public String getDataForTextArea(String fileLocation) {
InputStream inputStream = new FileInputStream(fileLocation);
if (inputStream != null) {
int b;
String txtData = "";
try {
while ((b = inputStream.read()) != -1) {
txtData += (char) b;
}
} catch (IOException e) {
e.printStackTrace();
} finally {
inputStream.close();
}
return txtData;
}
Make sure to check for nullpointerException.