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Java Inteview Preparation
Roshan Karwalkar
Created on December 12, 2021
Java Interview -Roshan
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Java ,Spring Boot, Microservices Interview Preperation
--Roshan Karwalkar
Keep it simple
Agenda
Core Java Interview Questions
Java 8 Features
Spring Boot
Microservices
01 Core Java
Core Java - 1
- What is Method Hiding - static method overriding in subclass
- String constant pool
- List the different collections you aware of.
- What is fail safe and fail fast iterators
- Questions on Hashmap internal working
- Diff in comparable and comparator interface.
- Diff in Array and ArrayList
- Diff in HashMap and ConcurrentHashMap
- What is serialization and externalization, use of transient keyword
Core Java - 2
- Checked/Unchecked Exceptions
- How to create our own custom checked execption
- What is need of serialization.
- What is diff between wait and notify method in multithreading.
- Design Patterns - Creational , structural, Behavioral
- Singletone Design pattern implementations
- How to break singleton design pattern
02 Java 8 Features
- Questions based on These features
Java 8 Features
- Lambda expression
- Functional Interfaces, implicit functional interfaces
- Can a functional interface extend/inherit another interface?
- What are static methods in Interfaces?
- Default methods
- Method References and Its Types
- Stream API - Examples on Filtering and Sorting
- Optional Class and Its Uses
Monitorng
DevOps
Account
Kim
Jack
Rita
John
Payal
Mac
IAM Role
EC2 Instance
IAM Role
EC2 Instance
S3
IAM Role
EC2 Instance
AWS Resources
03 Spring Boot
- Questions based on These features
Spring Boot Core Aspects
- What is IOC container
- What are the stereo type annotations in Spring Boot
- Whats is Bean's Life cycle and its scope
- What does @SpringBootApplication contains
- What does @Primary do.
- Whats is the use of @Qalifier .
- How Auto configurations works , how to disable it
- Difference in @Controller and @RestController
- Spring Profiles - Dev, Stage, Prod
03 Microservices Architecture
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Thanks!
Core Java Concepts
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Author's Name
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INFO
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INFO
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Process
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vs
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Option 1
Option 2
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Step 1
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80%
Data
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countries
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+ 45 m.
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+ 85 m.
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+ 1,2 m.
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Team
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