oracle interview questions for java developer

Java Multithreading and Concurrency basics interview questions and AnswersOriginal link: http://ifeve.com/java-multi-threading-concurrency-interview-questions-with-answers/Multithreading and concurrency issues are among the

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

Let's talk about some questions about the java programmer interview. This blog post is intended for recent graduates and java programmers who have been working for about two or three years. Why do I need to change jobs? This is a broad question. Everyone has an answer. For example: The company is not well-treated, The

Tags: RAC oracl SID Connection database permissions Forbidden Oracle user DDEWhen you create a new connectionConnection name: Your own casual name (but preferably the same as the project name)User name:Password:Host name: The IP address of the DB file namePort: The port in the DB file nameThe name after the port in the Sid;db fileSVN report URL Access forbidden for unknown reasonProbably because there is no SVN permission for the projectQuestions abou

Java Collections Interview QuestionsIn Java, collection interview questions is mostly asked by the interviewers. Here are the list of mostly asked collections interview questions with a

Java Multithreading interview QuestionsMultithreading and synchronization are considered as the typical chapter in Java programming. In game development company, Mulithreading related interview questions is asked mostly. A List of frequently asked

Java Algorithm interview questions: What are the methods for sorting? List. Use JAVA to implement a fast sorting. Select bubble quick set to sort by at least four methods, java Algorithm Package com. swift; import java. util. arra

(throughput) collector? The throughput collector uses a parallel version of the new generation garbage collector, which is used for medium-sized and large-scale data applications. The serial collector is sufficient for most small applications, which require about 100M of memory on modern processors. 41. In Java, when can objects be garbage collected? This object can be recycled when the object becomes inaccessible to applications that currently use t

., GC can avoid memory leaks and stack overflow, effectively improve the efficiency of memory utilization, It also frees programmers from tedious memory management.The string S=new string ("xyz"); How many stringobject are created?2, 1 in the text pool, 1 in the heap, first create 1 "XYZ" objects in the text pool, and then copy an "XYZ" object in the heap and assign it to the reference S.Ninth, Math.Round (11.5) How much? Math.Round (-11.5) how much?Math.Round (x) equals (int) Math.floor (x+o.5f

Multithreading and concurrency issues are one of 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

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, then they need a good foundation and some person

Job-hopping is not frequent, but has participated in a lot of interviews (telephone interview, face to faces interview), large/small companies, Internet/traditional software company, batter (above his business, lack of actual combat experience, hang off), also face, fortunately not because of failure and discouraged, in the process of constantly check gaps, developed a practical, Trace, continuous improveme

Summary and Induction of JAVA interview questions of Niuke Network (1), Niuke javaPreface Today, I saw an article on explaining the Spring framework in the Nuggets. The article mentioned Niu Ke's interview questions. As a result, I downloaded the Niuke web app and found that

The Java Collection framework is the foundation of the Java programming language and is an important knowledge point in the Java interview. Here, I've listed some important questions and answers about the Java collection.What is a

. After creating an array or an object in the heap, you can also define a special variable in the stack that is equal to the first address of the array or object in the heap memory, and this variable in the stack becomes the reference variable of the array or object. The reference variable in the stack can then be used in the program to access an array or an object in the heap, which is equivalent to a name that is an array or an object.2 0. Can i cast int to a variable of type byte?What happens

Interview Questions for Java engineers [social recruitment], java engineers Http://blog.csdn.net/jackfrued/article/details/44921941 1. What are the features of object orientation?2. What are the differences between access modifiers public, private, and protected?3. Is String the most basic data type?4. Is float f = 3.4

Oracle interview questions-Technical This may be an article you have been looking forward to. while paying attention to this part of technical questions, please be sure to read personal questions and answers during the interview.

Regular Interview Questions and answers by a ribaba Java engineer, Baba java 1. Implementation of Spring AOP and IOC Http://blog.csdn.net/tarena_lixy/article/details/7096114 Http://blog.csdn.net/kiss_vicente/article/details/6901295 Http://blog.csdn.net/it_man/article/details/4402245 2. Distributed message queue and dis

separately, which belongs to the salvage function operation.Interview question: Please explain the difference between ArrayList and Vector.· These two classes are subclasses of the List interface;· The Vector class is provided at JDK 1.0, and the method of operation provided is synchronous, so it is thread-safeThe Operation class;· The ArrayList class is provided at JDK 1.2, and the method provided is asynchronous, so it belongs to the non-linearProcess-safe Operation classes.If later in develo

[Switch] Top 50 Java thread interview questions, javatop No matter whether you are a new programmer or veteran, you must have encountered thread problems during the interview. An important feature of Java is its built-in support for concurrency, which makes