java IO 流的學習(我們到底能走多遠系列1)

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我們到底能走多遠系列(1)

“我們到底能走多遠系列”:開始我的java之路。我要挖出這個地道,離開這裡。

IO入門代碼閱讀:

位元組流:

    private void writeTxt(String path, String value) throws IOException{        OutputStream fos = new FileOutputStream(path);//構造方法1        fos.write(value.getBytes());        fos.close();    }    private void readTxt(String path) throws IOException{        File file = new File(path);        InputStream fis = new FileInputStream(path);//構造方法2        byte b[] = new byte[(int)file.length()] ;        fis.read(b);        System.out.print(new String(b));        fis.close();    }

字元流:

    private void writeTxt(String path, String value) throws IOException{        Writer writer = new FileWriter(path);        writer.write(value);        writer.close();    }        private void readTxt(String path) throws IOException{        Reader reader = new FileReader(path);        char c[] = new char[1024] ;        int len = reader.read(c);        System.out.print(new String(c, 0, len));        reader.close();    }
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