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Java IO BufferedReader 使用示例。@ermo

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    public static void read() throws IOException {
        String filepath = "src/main/resources/output.txt";
        BufferedReader in = new BufferedReader(new FileReader(filepath));
        char[] array = new char[100];
        try {
            in.read(array);
            System.out.println(array);
        } finally {
            in.close();
        }
    }

    public static void main(String[] args) throws IOException {
        read();
    }