Several questions from Java interview

xiaoxiao2021-03-06  40

Several questions from Java Interview

Java foundation: 1. Scope public, protected, private, and non-writing distinction 2 There are several representations of threads. What is it? Synchronize several implementation methods, what is it? 5, inherited the execution order of the class, generally a choice question, ask you how to print? 6, internal class What is the implementation? 7. How to optimize the program? 8, FLOAT type float f = 3.4 is correct? JSP side 1, what built-in objects do you have? 2, what actions do you have? What is the difference between the two implementations of INCLUDE? 4, what is the two jump modes? What is the difference? Servlet 1, say a SERVLET lifecycle? 2, servlet version (forgot to ask Which two versions are different? JDBC, JDO side, may let you write a JDBC even Oracle program. 2, Class.Forname's role? Why is it used? 3, JDO What? XML 1, What are the analysis technology of XML? What is the difference? 2. What are you using XML technology in the project? How to implement? 3 0 What are the contents? What is the difference between EJB2.0 and EJB1.1? MVC, 1, MVC's part of the MVC is implemented? How to implement? Design mode: 1, the development is used Those design patterns? What are the occasion? JavaScript 1 Plus, some problems may not be accurate, I hope that everyone is criticized, the problem is very found, even if you don't know, spend a little time to find (9CBS / Java version) can understand, I hope to have a friend who is looking for work. Helped, reminded. A stroll paper that is very high in a very high rate may reduce the burden for your interview, and ask a few questions. Of course, I still have to remind a basket from Java trap ---- Interview questions To interview, there is an interview with a way to deal with the interview. Some of the following topics come from me and my friend's painful interview experience, including these issues include IBM, E * Trade, Siebel, Motorola, Sun, and other size companies. There is no reason for the interview, and it is unreasonable, and it is out of practice. Have written on paper, there is a face test you, and there is also a question in the phone, giving you the estimate of the IDE, so you can buy a lottery ticket, maybe it is specified. So if you have finished reading this article, please don't complain that these problems can be solved with IDE. You have to answer these questions in any case, if you have one or two questions in the interview, you will be able to be rejected. Of course, these are the basic questions of Java. Most people who have interviews will not ask you how Hibernate has more advanced, Eclipse's three components, or Command Design Pattern, they are all aged, and the favorite is basics. . Don't underestimate these foundations, my friend is first-class, and the results are planted under the basis of basics, and the high salary is not worthy. It's better to say less nonsense and start the topic. First, talk about the difference between Final, Finally, Finalize. It is most often asked. Second, anonymous inner class (anonymous internal class) can be extends other classes, can IMPLEMENTS INTERFACE (interface)? Third, Static Nested Class and Inner Class are different, the more better, The interview question is very general). The difference between fourth, & and &&. This is very small. Fifth, the difference between HashMap and HashTable. I often ask. Sixth, the difference between Collection and Collectes. Don't say one is a single one is a plural. Seventh, when do you use Assert.

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