Why this programming question?This java interview question is mostly for candidates who claim at least 2 years of experience working in a sizeable team. Working together with many people on a large codebase has its own unique set of difficulties, one of which is how to coordinate large-scale...
注解，和反射一样，是Java中最重要却最容易被人遗忘的知识点。哪怕Spring、SpringMVC、SpringBoot等框架...
Java 8 has been released in March 2014, so it’s one of the hot topics in java interview questions. If you answer this question clearly, it will show that you like to keep yourself up-to-date with the latest technologies. Java 8 has been one of the biggest releases after Java 5 anno...
1.在线安装 yum install -y vim 示例含义：在线安装vim服务 注意：如果要加速yum在线下载需要修改yum源...
Question:Explain garbage collection? Answer:Garbage collection is one of the most important feature of Java. Garbage collection is also called automatic memory management as JVM automatically removes the unused variables/objects (value is null) from the memory. User program cann't directly free the ...
题源参见 Grokking The Java Developer Interview: Question 15: Difference between error and exception Answer: Error: Errors in a program are irrecoverable, they indicate that something severe has gone wrong in the application and the program gets terminated in case of error occurrence e.g. running ...
Answer to: (java question) What is wrong with this code example? public class Question { public static int main(String[] args) { } } By...
wrdr/Question-and-answer-Sharing-System本系统是基于微信小程序的问答分享系统，采用微信小程序的形式进行开发，后端采用SSH框架进行开发，开发语言为java，用户可以在小程序中进行提问、回答、分享故事、评论、围观以及充值收益等操作，在围观的过程中，用户对于感兴趣的内容可进行打赏与点赞。 对于本系统中的提问与...
Question: What's wrong with the following program? public class SomethingIsWrong { public static void main(String[] args) { Rectangle myRect; myRect.width = 40; myRect.height = 50; System.out.println("myRect's area is " + myRect.area()); } } Answer: The code never creates a ...
Wrap the code with try-catch to catch the exception. After compiling with javap again, the bytecode becomes like this: It can be clearly seen that the bytecode has changed, at least it has become longer. Mainly focus on the part I framed. ...