读取文件小记

            File file = new File("src/com/test4/util/StringUtil.java");            FileInputStream in = new FileInputStream(file);            InputStreamReader reader = new InputStreamReader(in);            BufferedReader bf = new BufferedReader(reader);            int i = 0 ;            while(i!=-1){                String line = bf.readLine();                  i=bf.read();            }