char ch;BufferedReader in = new BufferedReader(new InputStreamReader(System.in));  //將字節(jié)流轉(zhuǎn)為字符流，帶緩沖try {    while ((ch = (char) in.read()) != -1){        System.out.print(ch);    }} catch (IOException e) {    e.printStackTrace();}

• 將AtomicityTest.java的內(nèi)容打印到顯示器

方法一：

BufferedReader in = new BufferedReader(new FileReader("AtomicityTest.java"));String s;try {    while ((s = in.readLine()) != null){        System.out.println(s);    }    in.close();} catch (IOException e) {    e.printStackTrace();}

方法二：

FileReader in = new FileReader("AtomicityTest.java");int b;try {    while ((b = in
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