编辑使用System.in和System.out的方法

Question

我有此方法

    OutputStream os = new FileOutputStream("out.txt");
    InputStream is = new FileInputStream("out.txt");
    Transit.outputTransport(Parking, os);
    System.out.println(Parking.toString());
    Transport forOut = Transit.inputTransport(is);
    System.out.println(forOut.toString());
    System.out.println();

我需要将源从fileoutput更改为System.out，并将System.in的文件输入更改为代码。我怎样才能做到这一点？ Transit.outputTransport（Parking，os）-在文件中写入字节字符串，Transit.inputTransport（is）-将字节转换为普通格式后返回对象

Answer 1

//OutputStream os = new FileOutputStream("out.txt"); //<- comment this
Scanner is = new Scanner(System.in); //Change it to use Scanner
Transit.outputTransport(Parking, os);
System.out.println(Parking.toString());
Transport forOut = Transit.inputTransport(is);
System.out.println(forOut.toString());
System.out.println();

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