1. What is the role of meta tags
2, ReenTrantLock reentrant lock (and the difference of synchronized) Summary
3, automatic assembly in Spring What are the limits?
4. What is a variable parameter?
5. What is the domain model (domain model)? Anemia model (anaemic domain model) and congestive model (rich domain model) What is the difference?
6, talk http, https protocol
7, "==" and equals method is what is the difference?
8, & and && difference?
9, .super.getClass () method call?
Article 10, 10 SQL Optimization Tips
11,10 Road classic java face questions _ intern will ask!
12, 15 a concurrent threads Java interview questions and answers
13, 15 high-level multi-threaded Java interview questions and answers
14,2000w data, only the data stored in redis 20w, how to ensure that the data is hot data in redis
15, 2018 related to the latest distributed java interview questions
16,2018 latest technology java interview questions and answers
17, 23 kinds of classic design patterns what are, how to classify?
Spring 18,4 a common interview questions and answers to resolve
19,58 home MySQL database development specifications
Article 20,9 tips to improve the performance of Java
21,9 Road common java written multiple-choice questions
22, abstract class and interface What is the difference
23. What is the ActiveMQ
24. What activity that?
25, what is the biggest feature of Ajax
26, ajax shortcomings
27, when ajax request, how to interpret the data json
28 ajax request time difference, get and post methods
29, Ajxa Frequently Asked Questions What are
30, Anonymous Inner Class (anonymous inner classes) if you can extends (inheritance) other classes, can implements (achieve) interface (Interface
31, Anonymous Inner Class (anonymous inner classes) can inherit another class? Can I implement an interface?
32, aop proxy mode
33 difference, ArrayList, Vector, LinkedList of
34, the difference between ArrayList and LinkedList
35, remove elements correctly when traversing ArrayList
36, Arrays.sort principle and implementation principles Collection
37、BeanFactory 和 ApplicationContext
38、BeanFactory 和 FactoryBean
39, BIO, 和 NIO AIO
The role of 40, break and continue the
41, C / S and B / S distinction
42, CAS what mechanism? What are the disadvantages, what problems will arise
43, char type variable can store a Chinese characters? Why?
44, the role of the Class class? Class object's method to generate what?
45, Collection and Collections of the difference?
46, Comparable and Comparator interfaces are doing? They differ list
47. Why ConcurrenHashMap introduction 1.8 use red-black tree
48, the difference between cookie and session, distributed environment how to save the user state
49, CSRF attack defense method
50, CSS3 What's new there?
51, the difference between the CSS and link the @import
52, CSS which can be defined by the attributes, such that a DOM element is not displayed in the browser visible range?
53, css face questions and answers
54, display: none and visibility: hidden What is the difference?
55, div + css layout than the table layout What are the advantages?
56, the role of Doctype? Difference between strict mode and promiscuous mode?
57, the difference documen.write and innerHTML?
58, document the difference between the load and the document ready
The difference between 59, drop, delete and truncate the
60, Dubbo and DubboX difference
61, Dubbo zookeeper do in a registry, the registry if the clusters hang up, but also communication between publishers and subscribers it?
62, which has a role in Dubbo?
63, Dubbo in terms of security is how to solve
64, Dubbo implementation process?
65, Dubbo protocols supported what?
66, registration centers supported Dubbo What?
67, dubbo service load balancing strategy?
68, dubbo core configuration What? What agreement dubbo recommended?
69, dubbo and direct connection to the registry of distinction
70, dubbo protocol communication protocol dubbo why can not pass big bag
71, dubbo protocol communication protocol dubbo why consumers more than the number of providers
72, dubbo Dubbo protocol communication protocol using asynchronous single long connection Why
73, dubbo protocol communication protocol and the scope of application scenarios Dubbo
74, the difference between the Enumeration interface and Iterator interfaces What?
75 difference, Error and RuntimeException of
76, Error and Exception What is the difference?
77, Eureka in three roles, respectively, what is?
78, Eureka registry is what?
79, final, finally and finalized the difference?
80, float f = 3.4; correct?
81, GC is the What? Why should there be GC?
82, GC thread is a daemon thread?
83, the difference between GET and POST, when to use POST?
84, get and post requests difference?
The importance of 85, hashCode () and equals () method is reflected in what areas
86, the role of the hashCode method?
87, HashMap 1.7 and 1.8 the difference, explained what had been done to optimize 1.8, how to optimize the
88, HashMap is thread-safe yet, why not thread safe
89, HashMap expansion process
90, HashMap and Hashtable What is the difference
91, HashMap and Hashtable difference?
92, HashMap implementation principle
93, hashMap underlying implementation
94, HashMap is not ordered?
95, HashSet is how to ensure non-repetition
96, HashSet and TreeSet What is the difference?
97, HashSet use and principles (hashCode () and equals ())
98, heap and stack What is the difference?
99, the state of Hibernate object
100, HR frequently asked interview questions summary (on)
101, HR frequently asked interview questions summary (under)
102, the difference between the HTML Encode and URL Encode
103, html5 what new features have removed those elements? How to deal with a new label HTML5 browser compatibility problems? How to distinguish between HTML and HTML5?
104 both, HTML and XHTML What is the difference
105, HTML version changes the meaning and
106, the role of HTML character entities and their common character entity
107, the role of HTML forms and common item type table
108, html face questions and answers
109, HTML, CSS, Javascript what role each plays in Web Development?
110, http common status codes are those? Representing what is the meaning?
111, iframe advantages and disadvantages?
112, What? Strong and em the similarities and differences of the similarities and differences img alt and title?
113, the difference between the Integer and int
114, what is the difference between Iterator and ListIterator?
115, j2ee common design patterns? Description factory mode.
116, what is the role of Jar package
117, what several basic data types are JAVA, number of bytes occupied by each
118, Java Why is efficient (High Performance)?
119, Java semaphores
120, how JAVA language exception handling, keyword: throws, throw, try, catch, finally what sense are represented in the try block can throw exceptions do??
121, and the role of java.lang.ThreadLocal principle? Enumerate seen using ThreadLocal in which the program?
122, java.sql.Date and java.util.Date links and differences
123, Java.util.Map implementation class are those?
124, JavaScript's same-origin policy
125, javascript which return data type, typeof
126, what have JavaScript data types?
127, Java three versions
128, Java three kinds of comments Type Description
129, Java compared with JavaSciprt
The role of 130, java in the final and abstract keywords
Similarities and differences 131, java ++ i and i ++ in the
132, if multiple similarities and differences in the java branch statement and branch statement at multiple switch
133, the role of the static keyword in java
134, the java face questions with answers Encyclopedia String Class
The role of 135, java in this and super keywords
Difference 136, java, and while the do-while loop
137, Java will be a memory leak it, please describe simple?
138, Java garbage collection (GC) what purpose? What GC? What time garbage collection?
139, how to implement serialization in Java, what is the point?
140, Java how to get to the thread dump file
141, JAVA how to parse xml, in different ways have advantages and disadvantages?
142, java What is the mechanism to implement polymorphism is?
143, what thread in Java implement three methods of communication is the role?
144, java what is the use of the interface
145, java, there are several ways to implement a thread? What keywords synchronization method modified? Why stop () and suspend () method is not recommended?
146, in Java There are several types of flow?
147, what thread scheduling algorithm is used in Java?
148, eight kinds of basic data types and the number of bytes in the java
149, What are the two types of exceptions in Java is that? What is the difference? Exception and Error What is the difference?
150, java in the inheritance, overloading and cover what it means
151, conversion status java thread
152, a process configuration method under conditions of inherited java
153, Java in what is constructor? What is the overloaded constructor? What is the copy constructor?
154, java binary tree algorithm face questions with answers Encyclopedia
155, Java code optimization (on)
156, Java code optimization (lower)
157, Java write a bubble sort
158, Java write a binary search (binary search)
159, Java appear What are the reasons OutOf MemoryError (OOM errors)? After OOM error, how to solve?
160, after Java to create a thread, call the start () method and run () difference
161, Java technology is mainly reflected realize what kind, what role they are?
162, and using the occasion java reflection effect, and its advantages and disadvantages
163, java basic types of data type conversion rules
164, Java heap structure look like? What is a permanent heap-generation (Perm Gen space)?
165, java multithreading interview questions summary (the most complete history 40)
166, java multithreading thread concurrency face questions _ face questions
167, java multithreading face multiple-choice questions with answers Daquan
168, java how to generate a random integer between 0 and 100?
169, Java objects can be reclaimed when garbage? JVM permanent generation garbage collection What will happen?
170, java engineer non-technical questions
171, java engineer interview questions Daquan linux operating choices with answers (on)
172, java linux operating engineer interview questions Encyclopedia selective surface with solutions (lower)
173, java engineer interview Notes (a Tai Chi sword pass on to you)
174, java engineer interviewed 18 non-technical issues
175, Java open source data connections common pool which, and to make a brief description parameter
176, java serialized objects Why should define serialversionUID value?
177, what java development framework?
178, Java exception handling during execution of the try-catch-finally
179, java exception handling with multiple-choice answers to common interview questions
180, JAVA performance optimization
181, java performance optimization Daquan Collector's Edition
182, java array what characteristics
183, Java has no goto?
184, java detect whether Baidu included the site url
185, Java regular expressions to filter out the link address and title of html
186, java four types of virtual reference strong weak
187, Java's HashMap and Hashtable What is the difference HashSet and HashMap What is the difference? Use these methods to save structures need to override a number of what?
188, to understand how Java security
189, what is Java serialization is how to implement serialization of Java? Enumerate seen in the Java program, which serialized?
190, Java class loader what are, each class loader has to load those classes, what is the parent delegation model, you are doing what?
191, Java programmers most commonly committed three errors collection
192, java programmers finishing commonly used English words
193, java programmers looking for work need to be prepared before the killer (holy canon)
194, Java programs how to optimize?
195, Java Performance Tuning Tips
196 multiple-choice written test common java (pit you top)
197, java written handwriting algorithm interview questions with answers Daquan
198, java pen a few questions in a little deceptive multiple choice
199, java pen questions and answers (java difficulty pen questions)
200, java pen questions Daquan common choice IO streams
201, java pen questions with answers Daquan (classic 11 questions)
202, priority Java threads to follow what principle?
203, java advantages and principles of the stream buffer
204, java network programming: IP address and port number
205, java network programming: OSI seven-layer model and TCP / IP model introduced
206, java network programming: What is Socket Programming?
207, how the Java language exception handling, keyword: throws, throw, try, catch, finally, respectively, how to use?
208, Java cross-platform principle (bytecode files, virtual machine)
209, java software engineer interview Collection of data preparation (a Jianpu evil spirits to you)
210, java recursive algorithm Exercise: write a program using a recursive algorithm to calculate n!
211, JAVA all the elements traversed Map
212, Java collection architecture (List, Set, Collection, Map of the differences and connections)
213, compare java collections and arrays (Why introduces a set)
214, the basic interface Java collections framework of what?
215, best practices Java collections framework of what?
216, java collections organize multiple-choice written test with answers
217, Java collection of questions and answers summarize face
218, Java collection surface 10 questions classic
219, java face questions and answers 2018Spring high-frequency interview questions
220, java face questions most fallible 8
221, java face questions CAPE stood
222, JDBC, ibatis (mybatis), Hibernate What is the difference?
223, JDBC how to carry out a transaction?
224, the difference between JDK JRE JVM's?
225, jdk1.8 new features
226, what is the difference between JRE and JDK?
227, jquery how the array into a json string, then converted back?
228, JQuery an object can bind multiple events at the same time, how this is achieved?
229, jquery finishing face questions
230, js string manipulation functions which
231, JSP contains static and dynamic differences included?
232, JSP and Servlet have had anything to do?
233, JSP nine built-in objects and four domain objects?
234, js removal string space
235, js lazy loading options?
236, js how to add, remove, move, copy, create, and find nodes
237, JS add, remove, move, copy, create, and find nodes
238, JS acquisition parameters in the URL string in the browser
239, js face questions and answers
240, JVM's garbage collection algorithm common
241, what JVM class loading mechanism? What implementations?
242, common command line tool JVM and JVM tuning common tuning parameters
243, List and Set difference
244, List, Map, Set three interfaces while the access elements, what are the differences?
245, List, Set, Map whether inherited from the Collection interface?
246, after subList List, the original list to add, delete, change, and then the operation will happen subList
247, List which method to exclude the same object? Please use the code to implement a simple method
248, Lucene is what?
249, Map's implementation class, which is ordered, which are unordered, ordered is how to ensure its orderly, what do you think more orderly performance
250, Math.round (11.5) is equal to how much? Math.round (-11.5) equals how much?
251, Maven Daquan face questions and answers
252, the difference between memcached and redis
253, and the difference between the Redis Memcache
254, MVC model and its advantages and disadvantages
255, what is the basic idea of the MVC pattern is the complete paging function?
256, various parts of the MVC have those technologies to achieve? How to achieve?
257, mybatis $ and the difference between #
258, under what circumstances bind with MyBatis annotations with xml binding under what circumstances?
259, MyBatis There are several ways to achieve one? Specifically how to operate?
260, MyBatis interface is bound to realize there are several ways, namely how to achieve?
261, Mybatis is how to execute sql package for the target object and the result returned? What are mapping form?
262, Mybatis how to page? What is the principle pagination plug-in?
263, MyBatis primary cache and secondary cache
264, MyBatis advantage
265, what good is MyBatis?
266, what is the interface binding MyBatis, what are the benefits?
267, Mybatis can perform one to one, one to many association query it?
268, dynamic Sql MyBatis which is how the set? What syntax?
269, what MyCat that?
270, MYSQL how to optimize? The combination of your experience
271, MySQL storage engines - MyISAM and InnoDB difference
272, MySQL database indexes and index optimization techniques
273, mysql sql statement optimization method face questions summary
274, Mysql engine What? What things support? DB storage engine What?
275, Mysql database table locks, row locks, page-level locking
276, Netty major components
277, what is Netty
278, Netty performance in what areas
279, new operator specifically what did it?
280, Nginx what role there?
281, Node.js application of scene?
282, Node advantages and disadvantages
283, Oracle completed the paging function of three sub-query and its meaning?
284, oracle database T questions: sql statistics there are more than two classes of student scores in the names and ages of 80 points or more?
285, Overload and Override the difference. Overloaded methods can change the type of return value?
286, PHP language is the best language
287, postgresql joint index fail in order by time
288 difference, px and the em
289, what is the difference Query list method and iterate method interface?
The difference between 290, redis and the memcached
291, Redis and Memcache difference comparison, how to choose
292, redis common performance problems and solutions
293, Redis What are the advantages?
294, redis storage structure and principles of persistent and non-persistent
295, redis application scenario
296, Redis high concurrent and fast reasons
297, redis memcached What are the advantages compared to?
298, redis face questions
299, Redis Daquan face questions with answers
300, the main method of the Request object?
