object oriented interview questions

Front-End Job Interview Questions This repo contains a number of front-end interview questions that can be used when vetting potential candidates. it is by no means recommended to use every single question here on the same candidate (that wocould take hours ). choosing a few items from this list shocould help you vet t

are characterized by the inability to define variables, and all methods are abstract methods . abstract classes can have variables and do not enforce the need for abstract methods .Inheritance of class 16 and implementation of interfacesParsing: Class Inheriting the parent class implements the interface with the class, which is essentially the same. is to either extend or rewrite the parent class or interface as a template on this template. In practical programming, programmers often need to in

? Window.location.href 9.MySQL database, how to optimize? Answer: (1) configuration optimization (server configuration) (2) Build table optimization (table, field settings) (3) query optimization (SQL statement) A: 1, select the most applicable field properties, to minimize the definition of field length, as far as possible to set the field not NULL, such as ' Province, gender ', preferably set to enum 2. Use connection (join) instead of subquery: 3. Use Union (Union) instead of manually create

A while back, I posted a list of Asp. net interview questions . conventional wisdom was split, with about half the folks saying I was nuts and that it was a list of trivia. the others said basically "ya, those are good. I 'd probably have to look a few up. "To me, that's the right response. certainly I wasn' t trying to boil all. NET software development down to a few simple "trivia"

C # Summary of related interview questions, Recently, a friend engaged in NET development left the company and asked me to ask him some questions about NET. He was prepared to meet the new challenges. I quickly found various previous collections and questions. Today I will sort out basic NET knowledge points. 1. Three

If You enjoyed this post, or this blog,Please Make a secure tax-deductable donation to the American Diabetes Association. Please read My personal story about life as a diabeticand Donate Today. A while back, I posted a list of asp.net interview Questions. Conventional wisdom is split, with about half the folks saying I is nuts and that it is a list of trivia. The others said basically "Ya, those are good. I

(i) Description1. document Some of the programming questions (Python) that you encounter when interviewing a test engineer. 2, review the interview process, do a summary.(ii) title1. Input: JSON {"A": "AA", "B": "BB", "C": {"D": "DD", "E": "EE"}} output: Dictionary {' A ': ' AA ', ' B ': ' BB ', ' d ': ' DD ', ' e ': ' EE '}1 defconversion (n,the_dict):2 forKey,valueinchN.items ():3 #if value i

Original link: http://ifeve.com/java-multi-threading-concurrency-interview-questions-with-answers/Multithreading and concurrency issues are among the questions that interviewers prefer to ask in a Java technology interview. Here, the most important questions are listed from

so file not foundNoclassdeffounderror: You can find the right class at compile time, but you can't find the right class at runtime.Iv. outofmemoryerror (Memory overflow)Cause:1, the amount of data loaded in memory is too large, such as the last time to remove too much data from the database.2, the collection class has a reference to the object, after use is not emptied, so that the JVM can not be recycled.3. There are dead loops or loops in the code

The front-end classic interview questions are not classic. Do not use star !, Front-end starPreface (The following content is described by a friend.) Today I want to share with you several front-end classic interview questions. Why did I suddenly want to write such an article? Today, at the request of the company, I we

Multithreading and concurrency issues are among the questions that interviewers prefer to ask in a Java technology interview. Here, the most important questions are listed from the interview point of view, but you should still have a solid grasp of the basics of Java multithreading to match the problems you encounter l

Java Architects interview questions, how to become architectsOften interview some candidates, sorted out my interview using the topic, LU continued to organize a lot of problems, so each time to draw a part to ask. The answer will be gradually released in later articles. Basic Topics State of Java Threads The differe

, beanpostprocessor will process it and automatically create a proxy object for the bean that satisfies the matching rule.http://blog.csdn.net/itomge/article/details/8861268http://uule.iteye.com/blog/894055Spring Weaving Concept Weaving (Weaving): The process of applying a facet (Aspect) to a target object to create a new proxy object, which generally occurs in t

memory, can be controlled by the parameter max_heap_table_size the memory table size, set this parameter, you can limit the memory table maximum size.2. If the data is temporary and required to be immediately available, it can be stored in the memory table.3. Data stored in the memory table, if suddenly lost, will not have a substantial negative impact on the app service.What kinds of data structures are there in the Redis database? 5 Types of data structuresStringWhen using string, redis** doe

,-1,-1):x = Sequence[i]7:python How to implement the conversion of tuple and list?The function tuple (SEQ) converts all the iterated (iterable) sequences into a tuple, the element is unchanged, and the order is not changed.For example, a tuple ([+]) returns ("A."), and a tuple (' abc ') returns (' a '. ') B ', ' C '). If the parameter is already a tuple, the function does not make any copy and returns the original object directly, so it is not very ex

; } } } returnarr}//previous backward comparison, different push to new arrayArray.prototype.distinct2 =function () { vararr = This; vartemp = []; for(vari=0; i) { for(varj=i+1; j) { if(Arr[i] = = =Arr[j]) {J= ++i; }} temp.push (Arr[i])}returnTemp}//attributes that cannot be duplicated by using object property namesARRAY.PROTOTYPE.DISTINCT3 =function () { va

Summary of the latest PHP classic interview questions in 2017 (previous article), and last article in 2017 1. Difference Between Double quotation marks and single quotation marks Double quotation marks are used to interpret variables. Insert single quotes in double quotes. If there is a variable in single quotes, the variable is interpreted. A variable name in double quotation marks must be followed

I went to interview a company two days ago and asked this question, but I didn't quite understand it, so the answer was also swallowed up. Today, I saw some documents prepared by netizens on the Internet. I feel very good. I would like to share this with you. Process-oriented is to analyze the steps required to solve the problem, and then use functions to implement these steps Step by step. You can cal