C#/WPF面试题 (Epan, Citi)
2015-05-29 17:24
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当然面试问题不可能这么少,我只是把我觉得有意义和我当时答的不好拿出来
Epan面试:
1.简述IDisposable pattern,how it works?
2. Easiest way to convert 5 to 101 which is binary format?
answer: can use >> operator
3. C# collection complexity performance?
answer: There is a really good website to explain http://geekswithblogs.net/BlackRabbitCoder/archive/2011/06/16/c.net-fundamentals-choosing-the-right-collection-class.aspx
4. Expression tree.
5. Volatile. When and how to use it?
Citi面试:
1. Reference type and value type. Difference? Tell more. string type is reference type? why?
Answer: http://www.albahari.com/valuevsreftypes.aspx
2. immutable and mutable difference? why immutable?
3. What is Lambda expression?
有时候其实经常用,可如果不好好看看一些概念的具体定义的话,面试的时候很吃亏的
4. What is Delegate? definition?
5. int ? int32 ? int64 ? relationship?
6. Object class all the method inside? why we need equals and referenceequals? why we need gethashcode?
7. Reflection definition?
8. Assembly contains?
answer: metadata, resource, IL
9. .Net Garbage collection
10. What is thread safe? how to make it thread safe?
11. How to implement an notification service using WCF?
asnwer: duplex
Epan面试:
1.简述IDisposable pattern,how it works?
2. Easiest way to convert 5 to 101 which is binary format?
answer: can use >> operator
3. C# collection complexity performance?
answer: There is a really good website to explain http://geekswithblogs.net/BlackRabbitCoder/archive/2011/06/16/c.net-fundamentals-choosing-the-right-collection-class.aspx
4. Expression tree.
5. Volatile. When and how to use it?
Citi面试:
1. Reference type and value type. Difference? Tell more. string type is reference type? why?
Answer: http://www.albahari.com/valuevsreftypes.aspx
2. immutable and mutable difference? why immutable?
3. What is Lambda expression?
有时候其实经常用,可如果不好好看看一些概念的具体定义的话,面试的时候很吃亏的
4. What is Delegate? definition?
5. int ? int32 ? int64 ? relationship?
6. Object class all the method inside? why we need equals and referenceequals? why we need gethashcode?
7. Reflection definition?
8. Assembly contains?
answer: metadata, resource, IL
9. .Net Garbage collection
10. What is thread safe? how to make it thread safe?
11. How to implement an notification service using WCF?
asnwer: duplex
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