java IO存在问题

//java读取文件/*String path = "D:/project/training/src/com/test1/test.txt";File file = new File(path);if(!file.exists() || file.isDirectory()) {    System.out.println("error");}try {    BufferedReader br = new BufferedReader(new FileReader(file));    String temp = null;    StringBuffer sb = new StringBuffer();    temp = br.readLine();    while(temp != null) {        System.out.println(temp);        temp = br.readLine();    }} catch(IOException e) {    System.out.println("error");}*////??这样子都文件，如果文件是空白的，为什么还会读一个中文String filePathAndName = "D:/project/training/src/com/test1/test2.txt";String fileContent = "";try {

    File f = new File(filePathAndName);    if(f.isFile()&&f.exists()){        InputStreamReader read = new InputStreamReader(new FileInputStream(f),"UTF-8");        BufferedReader reader=new BufferedReader(read);        String line;        while ((line = reader.readLine()) != null) {            System.out.println(line);        }        read.close();    }} catch (Exception e) {    System.out.println("读取文件内容操作出错");    e.printStackTrace();}