java interview questions for experienced professionals

Java interview questions, java questions1/** 2 * write a function. It accepts an integer (assuming length) and returns an array. The length of the array is length, 3 * the content in the array is a random value ranging from 0 to (length-1) and cannot be repeated. 4*5 * If the length is 5, the array may be [, 4]. 6*7 *

Java interview questions, java questions 1. storage structures used by stacks and queues Chain storage and sequential Storage 2. understanding of time complexity and space complexityTime Complexity: Number of statement executions in an algorithm, which is T (n). When n ch

original types, and to use the standard placeholders that are used in the JDK.7. Write a generic program to implement LRU caching?This is the equivalent of an exercise for people who like Java programming. To give you a hint, linkedhashmap can be used to implement a fixed-size LRU cache, which moves the oldest key-value pairs out of the cache when the LRU cache is full. Linkedhashmap provides a method called Removeeldestentry (), which is used by the

execution.Surround notification is one of the most common types of notifications. Most interception-based AOP frameworks, such as Nanning and JBOSS4, provide only surround notifications.The concept of pointcut (pointcut) and connection point matching is the key to AOP, which makes AOP different from other old technologies that simply provide interception functionality.The pointcut enables the location notification (advice) to be independent of the OO hierarchy. For example, a around notificatio

Java's current heat has declined, but there are still a lot of people who learn java. Java's post is also a lot of infiltration. So, those classic Java knowledge points, you can see the problem can say 123? Come and have a look.The difference between 1.JDK and JRE What is the difference between 2.final, finally, and finalize?3. The difference between threads and processesHow does the HashMap in 4.

requirements graphically in various phases of software development; IBMRational Rose is one of the many UML modeling tools in the requirements phase, often used in drawing examples, class diagrams, sequential graphs. 15. Describe the tool class that you exported, and indicate the maximum amount of data POI (combining cell objects and background color applications) Finally here also found some of Baidu Library interview

1 , what are the aspects of object-oriented features ?　　The object-oriented programming language has 4 main features: encapsulation, inheritance, abstraction, polymorphism, etc.Details:http://www.cnblogs.com/guweiwei/p/6599289.html2 , access modifiers public,private,protected, and what is the difference between not writing (the default)? 　　Defaults to default when members of a class do not write access adornments. The default is equivalent to exposing (public) to other classes in the same packag

: The above can solve the POST request garbled problem. There are two garbled methods for GET request Chinese parameter:Modify the Tomcat profile add code to match the project code as follows: Another way to re-encode parameters: StringuserName =newString (Request.getparamter ("UserName"). GetBytes ("Iso8859-1"), "Utf-8") Iso8859-1 is the tomcat default encoding, and the Tomcat encoded content needs to be encoded by utf-8What is

understand the process of solving the problem, and find out what the individual has done, how to do, and what has been harvested. This is the accumulation of experience. The company ultimately needs to contribute to the work of the staff, so the need for experienced people to help solve the problem, then the ability to solve problems and thinking is very important. For students who do not have much experience, such as a new graduate or an intern, the

establishes a dependency between the beans.Simply put, beans are objects that are initialized, assembled, and managed by the spring IOC container.The process of getting the Bean object, first loading the configuration file with resource and starting the IOC container, and then getting the bean object through the Getbean method, you can call his method.Scope of Spring Bean:There is only one shared bean instance in the Singleton:spring IOC container, which is generally the Singleton scope.Prototy

Java Interview Questions Library recommendation Directory (?) [-] 324 Java interview questions for IT Enterprises Introduction 324 Java