我无法阅读文件，而文件语言没有错误

Question

如果没有读取错误，我将无法读取以.docx结尾的文件。 我需要有关javaFx组件上显示的语言的帮助。

    public void Button1Action(ActionEvent event) throws IOException {
    File file = null;


    FileChooser fileChooser = new FileChooser();
    fileChooser.setInitialDirectory(new File ("C:\\Users\\Admin\\Desktop\\Software Engineering\\Final Courses\\Final Project\\Projects on Eclipse\\Project Lab"));
    fileChooser.getExtensionFilters().addAll(
            new ExtensionFilter("DOCX Files", "*.docx"));
    //FileInputStream fileChooser = new FileInputStream(fileChooser.getAbsolutePath());
    fileChooser.setTitle("Open Resource File");
    File selectedFile = fileChooser.showOpenDialog(null);
    StringBuffer contents = new StringBuffer();
    FileReader reader = null;
    //BufferedReader reader = null;
    new InputStreamReader(new FileInputStream(selectedFile), StandardCharsets.UTF_8);
    Scanner in = new Scanner(new FileReader(selectedFile));
    String content;

    reader = new FileReader(selectedFile);
    char[] chars = new char[(int) selectedFile.length()];
    reader.read(chars);
    content = new String(chars);

    reader.close();
    if(selectedFile != null) {
            textFile.getItems().add(content);
    } else {
            System.out.println("file is not valid");
    }


}