Yes we can have main method in multiple classes. Class whose name we have passed while running the application will be executed. For example we have two classes ClassA and ClassB and both are having main() metho
It’s a great design question and asked a lot in java interviews. This post provides all the differences between abstract class and interface. When should we use interface over the abstract class and vice versa? The post also explains how to use abstract class and interface to create a flexi...
If you’re interviewing for a Java programming role, then your coding skills will probably be tested. Whether you’re a beginner in Java or an expert programmer, this article provides some common Java interview questions and answers to help you prepare. 1. How do you reverse a string in Ja...
Below are five examples of basic java problems. These questions are simple in nature, testing only one concept. They are meant to be solved in a collaborative integrated development environment (IDE). You can access the sample inputs, sample outputs, and base code for each question by ...
What is the problem with doing this, and how would you go about it while cause the minimum amount of disruption to the other programmers?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. ...
Another useful interview strategy is to review potential Java interview questions in advance. Let’s check out examples of some of the top Java interview questions. Also, each question includes some information that can help refresh your memory. ...
Dear readers, the app for java developers! The app include bible of all java,best for java developers & interview. ---these Java Interview Questions have been…
It is also very easy question. The major difference is thatHashTable is synchronized and HashMap is not. If asked for other reasons, tell them,HashTable is legacy class(part of JDK 1.0) which was promoted into collections framework by implementing Map interface later. It still has someextra...
[Interview Question ][Data Structure] Two Sum Problem -Array Two sum problem is one of the most asked data structure questions for a java developer interview. There could be one or more ways to solve the problem but i am trying to give the optimized solution to this problem. Lets first...
Spring:https://spring.io/guides Redis :https://redis.io/documentation Dubbo:http://dubbo.apache.org/zh-cn/docs/user/quick-start.html ShardingJDBC:https://shardingsphere.apache.org/document/current/cn/features/ 在线阅读 使用语雀提供了较好的阅读体验 ...