java文件流处理

 

File f = new  File(( “lll.xxx " );

BufferedReader reader  =   new  BufferedReader( new  FileReader(f));

String line;

while ((line = reader.readLine()) != null ){

    strContent += line;
}

File f  =   new  File( " E:\99.inc " );

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);

}

向文本文件中追加写入内容

try   {
    FileWriter filewriter = new FileWriter(new File(”text.txt”), true);
    String content = “aaaaaa”;
    filewriter.write(content);
    filewriter.close();
}   catch  (IOException e)  {
    e.printStackTrace();
}

FileWriter(new File(”text.txt”), true)中“true”是设置为向文件中追加内容