What is the 1.j2ee?
2. Introduce the Collection Framework in Java (including how to write your own data structure)?
Such as the difference between the legacy of the legration (havehtable, vector) and existing class? (Synchronize)
3. Abnormal handling mechanism, event mechanism in Java?
4. The difference between EJB and Java Bean?
EJB and Java Bean are different component specifications of Sun, EJB is run, step-by-step, while Java Bean is mainly an available components, mainly in the client UI.
5. Polymontist and inheritance in Java?
Programmable, select questions.
6. Abstract class and interface?
The advantage of the interface is to separate with the performance.
Abstract classes and interfaces are used for abstraction, but abstract classes (Java) can have their own partial implementation, and interface is completely identified (both multiple inheritance functions).
7. Java Communication Programming, Program (or Q & A), programming, read server several characters with Java Socket, write to local display?
8. What is the difference between forward () and redirect () in Java Servlet API?
The Forward () method can use the original object and the speed is faster.
9. Java parsing XML way?
SAX, DOM
10. Use Java to implement database queries, this is a program.
Basic operation, don't talk.
11. Using Java to achieve a method of sorting, comparing, Java classes (two)?
As in the Collection Framework, what kind of interface is achieved.
12. The difference between dynamic include and static incrude in JSP?
Old set, dynamic can be parameted, static is equivalent to a static HTML file.
13. What is the difference between application server and web server?
14. Design mode with UML.
Such as factory models, solve multi-database support issues.
15. Programming: Write a function that intercept strings, input to a string and byte, and output a string that is intercepted by byte.
But to ensure that the Chinese characters are not taken, such as "I abc" 4, should be "I abc", enter "I am ABC Han DEF", 6, should output "I ABC" instead of "I am ABC Han ".
16. Paging Solutions under Oracle Big Data. Generally, the ID method is used, and there is a three-layer nested method.
17.Web service noun explanation. JSWDL development package. JAXP, JAXM explanation. SOAP, UDDI explanation.
18. Contact and difference between BS and CS.
19. The interpretation of the GDI class under 19.Linux.
20. Java multi-threaded programming.
Write a multi-thread program with Java, such as writing four threads, two plus 1, two to one variable minus one, output.
21. The basic work of Java: String differs from StringBuffer.
22.Struts Application (such as Struts Architecture)
The content here is better
http://www.cjsdn.net/post/view?bid=1&id=105025&tpg=1&pg=1&sty=1&age=0#105025
Looking for a job 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 you say, the 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.
API-level technicians may ask this.
Eighth, what is GC? Why have GC?
basis.
Ninth, string s = new string ("xyz"); created a few String Object?
Tenth, Math.Round (11.5) is equal to how much? Math.Round (-11.5) is equal?
Eleventh, short s1 = 1; S1 = S1 1; What is wrong? SHORT S1 = 1; S1 = 1; What is wrong?
The interview questions are very varied, and you must prepare for abuse.
12. What is the difference between SLEEP () and WAIT ()?
Four the favorite of threads.
Thirteenth, have Java goto?
Very thirteen questions, if I ask this question, I advise you still in this company.
Fourteenth, there is a length () method for arrays? String has a length () method?
Fifteenth, the difference between overload and override. Can OVERLOADED methods change the type of return value?
I often ask.
Tenth, the elements in the set cannot be repeated, then what method is used to distinguish whether it is repeated? Is it == or equals ()? What is the difference?
Seventest, give me a Runtime Exception you most often.
If you can't answer this, the interview will think that you don't have practical programming experience.
What is the difference between Error and Exception?
Near 10th, List, SET, MAP inherits from a Collection interface?
Ten, what is the difference between Abstract Class and Interface?
I often ask.
Second Eleventh, whether the method of Abstract can be Static, whether it can be Native at the same time, is it possible to be SYNCHRONIZED? 22, whether the interface can inherit the interface? Does the abstract class can implement (IMPLEMENTS) interface? Whether the abstract class is Can I inherit the physical class (CONCRETE CLASS)?
On the thirteenth, starting a thread is Run () or start ()?
24. Is the constructor CONSTRUCTOR can be Override?
The second fifteenth, can you inherit the String class?
Twentydays, after a thread enters an SYNCHRONIZED method of an object, can other threads can enter other methods of this object?
27. There is a Return statement in try {}, then the code in finally {} in this try will not be executed, when is executed, before returnome or after?
Chapter 28. Program: 2 Multiply 8 equal to?
Programmers with C background especially like to ask this question.
The second nine, the two object values are the same (x.equals (y) == true, but there can be different haveh codes, this sentence is wrong?
Thirty, when an object is passed as a parameter to a method, this method can change the properties of this object and return the resulting result, then here is the value delivery or reference delivery?
Thirty-first, whether SWTICH can act on byte, whether it can act on long, can it work on String?
Article 32. Program: Write a Singleton.
