从 COBOL 过渡到 C++
我是一名相当初级的程序员,我的任务是面试一位经验丰富的大型机 COBOL 程序员,以担任 Windows Mobile 的 C++ 开发职位。 我所说的“经验丰富”是指候选人的整个编程生涯都是 COBOL。
我对任何特定语言没有偏见,只是稍微担心我进行彻底采访的能力。
在面试过程中,没有 COBOL 经验的我如何才能很好地感受到面试者的能力?
我应该询问或寻找什么具体的事情吗?
我已经阅读了很多有关 SO 的一般面试资料,考虑到候选人背景的性质,我寻找的任何具体内容都会有所帮助。
I am a fairly junior programmer and have the task of interviewing an experienced mainframe COBOL programmer for a position doing C++ development for Windows Mobile. By experienced I mean that the candidate's entire programming career has been COBOL.
I am not biased against any particular language, just slightly concerned about my ability to do a thorough interview.
Inside of an interview how can I, with no COBOL experience, get a good feel for the abilities of this interviewee?
Are there any specific things I should ask or look for?
I have already read up on a lot of general interview stuff on SO, what would be helpful are any specific things I look for given the nature of the candidate's background.
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最好的事情是,给他一项任务,类似于他在你的公司要做的事情。
告诉他他可以使用伪代码(因此不需要互联网)。
另外,Cobol 人们面临的主要问题是掌握 OO(因为 Cobol 主要是程序性的......我知道新的 OO 版本)。
Cobol 人们遇到的另一个陷阱是掌握范围概念,因为传统的 Cobol 每个变量从头到尾都存在于他所在的应用程序中。
The best thing is, give him a task, similar to what he will have to do at your company.
Tell him he can use pseudo code (So no Internet is needed).
Also, The main problem Cobol people have is to grasp OO (Since Cobol is mostly procedural...I am aware of new OO versions).
One more pitfall Cobol people have is grasping the scope concept, As traditional Cobol each variable live from start to bottom of the app he is in.
如果这个人是一名优秀的程序员,他/她就有使用其他语言的经验。 (以一个从 COBOL 甚至更糟糕的 RPG/II 开始的老家伙的身份来说。)即使这个人从未从事过其他任何工作。
您可能会问以下问题:
还是有一台真正的计算机?”如果他们声称有任何 C++ 知识,那么一组非常好的筛选问题是:
If this person is a good programmer at all, he/she have had experience with other languages. (Speaking as an old fart who started with COBOL and even worse RPG/II.) Even if this person have never had a job with anything else.
Here are some things you might ask:
or do you have a real computer?"If they claim any C++ knowledge, a really good set of screening questions are:
确保他们知道并理解结构/类、类型、多态性、模板、函数,以及最重要的指针。
确保他们理解语法。 例如,他们如何声明一个指向带有两个整数参数的 void 函数的指针? 他们将如何解决最令人烦恼的解析?
初始化列表如何优化代码? 他们熟悉标准模板库吗?
他们可以手工编写原始链表或向量数组吗?
这些是您想要的能够编写高效、简洁代码的程序员所具备的东西。
Make sure they know and understand structs/classes, types, polymorphism, templates, functions, and most importantly pointers.
Make sure they understand the syntax. How would they declare a pointer to a void function that takes two integer arguments, for example? How would they solve the most vexing parse?
How can initialization lists optimize code? Are they familiar with the Standard Template Library?
Can they hand-code a primitive linked list or vector array by hand?
These things are what you want in a programmer capable of writing efficient and clean code.
如果面试者应该从事 C++ 方面的工作,那么了解他在 C++ 方面的水平不是更重要吗?
Isn't it more important to figure out how good the interviewee is in regards to C++, if that's what he is supposed to work on?