Java如何读取和记录记事本中的内容??

读文件：
String encoding = "gbk";
File file = new File("F:\\xxx.txt");
if (file.isFile() && file.exists()) { // 判断文件是否存在
InputStreamReader read = new InputStreamReader(
new FileInputStream(file), encoding);// 考虑到编码格式
BufferedReader bufferedReader = new BufferedReader(read);
String lineTxt = null;
list = new ArrayList<String>();
while ((lineTxt = bufferedReader.readLine()) != null) {
System.out.println(lineTxt);
if (lineTxt != "") {
list.add(lineTxt);
}
}
read.close();
}

写文件：
File outFile = new File(parentFile, inFile.getName() + outFileIndex
+ SUFFIX);
FileOutputStream out = new FileOutputStream(outFile);
inEndIndex += size;
inEndIndex = (inEndIndex < fileLength) ? inEndIndex : fileLength;
// 从输入流中读取字节存储到输出流中
OutputStreamWriter write = new OutputStreamWriter(out, "gbk");
BufferedWriter writer = new Bu