oop design interview questions

Concise answers to several java interview questions, concise java interview questions The difference between equal and = in java: The equal method is used to compare object references unless it is overwritten (such as String class and basic type package class. And ==except for comparing basic types, it is a comparison

C/c ++ common interview questions, interview questions 1. What is the role of static in C? (1) Hide. When we compile multiple files at the same time, all global variables and functions without the static prefix have global visibility. Therefore, we use static to define functions with the same name and variables with th

Android interview questions (3) and android interview questions 1. Describe the lifecycle of an Activity. Activity lifecycle methods include:OnCreate (), onStart (), onReStart (), onResume (), onPause (), onStop (), onDestory ();Visible life cycle: from onStart () to onStop () called by the System ()Foreground

Android interview questions (2) and android interview questions 1. What is the difference between int and Integer? Java provides two different types: The reference type and the original type (or the built-in type ). Int Is the original data type of java, and Integer is the encapsulation class provided by java

virtual.Attention:If you do not need a base class to manipulate derived classes and objects, you cannot define virtual functions, including virtual destructors, because this increases memory overhead.How C + + makes the function of the returned object not call the copy constructor"Explicit" keyword before copy constructor35. Orphan process and zombie processHttp://www.cnblogs.com/Anker/p/3271773.htmlWritten and interview

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

, briefly describe the object-oriented understanding, and give examples of your understanding.2. Write a single case pattern.3. Write a regular expression of a 11-digit mobile phone number4, implement a string of multiple spaces to convert a space5, String common method, substring (), split ().6, Start () and run () difference.7. Write a design pattern that you know.8, WebService Introduction. (I didn't use it myself, slag.)9. Speak the servlet life c

Inspection by half of technology companiesProgramMember'sAlgorithm, Data structures, operating systems, programming capabilities, big companies also have IQ questions. The following are the top 10 most challenging tech companies in the United States: 1. thoughtworks; Second: Google (there will be multiple rounds of interviews involving IQ tests and instant mathematical questions ); Third: Unisys

English Original: Java Exception and Error interview Questions Answers In the Java Core Knowledge interview, you always encounter questions about handling exception and error. Exception processing is a very important aspect of Java application development and the key to writing robust and stable Java programs, which n

During the interview, you are always asked, what is your understanding of JavaScript object-oriented?Object-Oriented programming (Object-oriented Programming,oop) is a programming paradigm. It speaks of objects as the basic unit of program design, the program and data encapsulation to improve the reusability, flexibility and extensibility of the program. First,

describe a project that you think can better reflect the idea of OOP. (It is best for this project to be inherited, multi-state, and virtual functions all reflect.) This problem may take about half of the interview time, and many questions will be asked, which may be asked accidentally )....12. The base class has a virtual function. Do the subclass need to be de

When you're ready for a technical iOS interview, it's important to understand what topics you might be asking and what experienced iOS developers expect.This is a series of questions that many Silicon Valley companies use to measure the level of seniority of iOS candidates.These issues cover all aspects of iOS development and are designed to reach a broad understanding of the platform.After all, advanced de

Android interview questions, android interview1. How to Improve the sliding efficiency of ListView2. Let's talk about the architecture of the project package (networking, parsing, activity, database ).3. how to load a large number of images (including small images and big charts), how to reduce the number of connections to the server at a time, and how to cache images,4. Relationship between onInterceptTouc

In recent years, more and more Silicon Valley technology companies have begun to use the puzzle interview method. These companies are not interested in the correct answer, but in the way and ability of candidates to solve the problem. In China, whether it's a new graduate or a jobProgramWhen applying for work in programming and software development, recruiters will always arrange a written test to examine their programming and logic analysis capabilit

taking over the pen exam, the first step is to calm down, the second step is to browse all the questions, and the third step is to answer questions ~ When answering a question, you must answer the question quickly first. You may not have to say more about the multiple-choice question. Based on your understanding, I will give you a rough explanation of how many points you will receive. Programming is actual

Shenzhen interesting online pen exam interview questions, Shenzhen pen exam questions Interview QuestionsPart 1 (10 points per question)1> Use Your encoding style to write out a class that can be added, subtracted, multiplied, and divided.2> evaluate the expression value: 1 + 3 + 5 + 7 + ..... + N3> Department table:De

. NET basic interview questions and. net questions I graduated this year and have some temporary preparations before the interview during my job search this semester. The following answers to the interview questions shared by Lao

Java interview questions, java questions1. simple principles and applications of the Exception Handling Mechanism in C ++ or Java.When a JAVA program violates the JAVA Semantic Rules, the JAVA Virtual Machine will indicate an error as an exception. There are two types of violation of Semantic Rules. One is the built-in semantic check of the JAVA class library. For example, if the array subscript is out of t

Java interview questions, java questions1. Can a ". java" source file contain multiple classes (not internal classes )? What are the restrictions?A: Yes, but there can only be one public class. If there is a public class, the file name must be the same as the class name.2. Does Java have a goto?A: Reserved Words in java are not currently used in java.3. What is the difference between "" and?A: Both and ca

PHP interview questions and answers, php questions and answers. PHP interview questions and answers, php questions and answers 1. write a function to convert the string open_door to OpenDoor and make_by_id to MakeById. Functionstr