Redis缓存的超时时间，或者是Redis持久化技能，或者你还可以再准备，通过Redis集群或MyCAT分库分表组件来提升数据库性能。其实面试官对性能慢的原因以及解决方法不怎么关注，更关注一整套分析和解决数据库性能问题的步骤和思路。而且上述说辞和准备要点所涉及到的技能初级开发都能准备到位。而且，哪怕简历上的项目是学习
This is one of the tough Java interview question and its open for all, my friend didn't knowthe answer so he didn't mind telling me. my take is that stored procedure should return error code if some operation fails but if stored procedure itself fail than catching SQLException is only ch...
Object-Oriented Programming (OOP) Data Structures and Algorithms References Generics Miscellaneous: Java Basics, Garbage Collection, Threading, ExceptionsSample Java Test QuestionWhich of the following Java classes effectively prevent other classes from modifying their internal data? (Check all that apply.)...
String、 StringBuffer和StringBuilder的区别是什么?String为什么是不可变的?== 与 equals?hashCode 与 equ...
question to experience Java programmer of 4 to 5 years of experience. I have seen this question on big companies likeMorgan Stanley,JP Morgan, Nomura and other banks e.g. Barclays capital. SeeHow HashMap works internally in Javafor detailed answer of this Java collection interview question. ...
答案表(answer) 5. 步骤三:后端开发 在这一步中,我们需要实现后端的功能,包括题目的增删改查、题目与答案的关联以及导出面试题与答案等功能。下面是一个简单的后端开发代码示例,以Java语言为例。 // 题目管理的Controller@RestController@RequestMapping("/question")publicclassQuestionController{@AutowiredprivateQuestion...
Two of the most common responses experienced programmers give to this tough Java coding interview question? Unreachable code due to the conditional statement No main method found because it’s just a code snippet These are both noble attempts to answer the question, and neither of them ar...
maybe I wasn't clear enough: In a java challenge, one question was "What is the output of this code?" with 3 options: "RunTimeException", "2", "2.5". I chose the answer "2" which turned out to be false and when the correct answer shows as to be "RunTimeException". I didn'...
Question:How you can force the garbage collection? Answer:Garbage collection automatic process and can't be forced. Question:What is OOPS? Answer:OOP is the common abbreviation for Object-Oriented Programming. Question:Describe the principles of OOPS. ...
Run the test case that uses myVar and the checkValues method will be called. Question: How can I determine if an array has the required number of elements? Answer: When specifying the values for array elements, if there are more elements in the actual data than are specified in the data...