what is XML and what is XML based on ?
Java Lead Interview Questions
601 java lead interview questions shared by candidates
Asked about the Security for the developed rest services.
Explain how Signle Sign on is implemented
About your projects. Technical coding questions and some front-end questions. Architecture and design of your project. How do you manage the resources and meet project deadlines.
What are cyclic beans. Which object will be instantiated first
Q1. What is java memory model explain it? Q2. How Hashmap works internally many questions on the hashmap working. a. What is the data structure is used to store entity? b. how hashcode works with the performace of hashmap? c. What is the good way to override hashmap? d. Which version of java uses Red Black tree for storing hash entity having hashcode collision? e. What is hash collision explain that. write some code which uses a class as key and override hashcode and equals mehod in that. f.write code for good hashcode. Q3 What is Executor framework in java? a. write code for creating threads using executor framework. b. How will you assign threads doing subtask in executor framework? c. What is Lock? d. which is concurrency package, what are the classes in that? e. what is semaphore? Where it is used? f.Tell something about producer and consumer problem, which class of queue interface is used to solve it? Q4 How ArrayList works? which Collection is resizable? when arraylist grows what is the new size?
Merge two sorted arrays and return the same array optimally.
Design a solution to captialize first name and last name from some text.
3 interviews + codility test Personal interview, ~45 mins with the recruiter Codility test were SQL and Spring Boot exercises General behavour on managing people, how do you motivate people, keep quality, balance between delivering and keeping people happy, motivation, etc
Given a few features for Whatsapp, decide how many resources needed with what skills to deliver the feature in a month. Kafka concepts, algorithms, distributed system scenarios.
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