Make filechooser work JavaFx

Question

I create a filechooser and i want to know how read a file from it:

public void open(){
            FileChooser fileChooser = new FileChooser();
            FileChooser.ExtensionFilter extFilter = new FileChooser.ExtensionFilter("TXT files (*.Txt)", "*.Txt");
            fileChooser.getExtensionFilters().add(extFilter);
            File file = fileChooser.showOpenDialog(stage);
}

Answer 1

You can read a file into a String like this (Java 7+):

    FileChooser fileChooser = new FileChooser();
    fileChooser.setTitle("Select txt");
    fileChooser.getExtensionFilters().addAll(new FileChooser.ExtensionFilter("Text Files", "*.txt"));
    File selectedFile = fileChooser.showOpenDialog(null);
    if (selectedFile != null) {
        String fileAsString = new String(Files.readAllBytes(Paths.get(fileAsString.toPath()), StandardCharsets.UTF_8);
    }