java object oriented interview questions

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

Some days ago, I wrote an article in the blog Park, how to introduce my project experience in the interview, Harvest more than 2000 clicks, which undoubtedly inspired me to continue to share the enthusiasm, today I come to share another interview can even help everyone to reverse the skills, this article is from the Java Web Lightweight Development

Java interview questions, java questionsCommon Java interview questions: What if the main method is declared as private? Answer: It can be compiled normally, but the system prompts "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

overwritten, and classes cannot be inherited. (2) finally is a keyword in exception handling, indicating that the code in finally {} must be executed. (3) finalize is a method of the Object class. This method is called during garbage collection. 6. If there is a return statement in try (), will the code in finally {} be executed? When will it be executed, before or after return? I wrote a code and tested it: public class finallyDemo public static v

of Java threading and concurrency, because many of the candidates are floating on the surface. High-capacity and low-latency electronic trading systems for direct market-oriented trading are inherently concurrent. Here are some Java threading issues I like to ask at different times and locations. I did not provide the answer, but whenever possible I will give yo

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