Java Full Stack Developer Interview Questions

Interview Questions

• Q1. Suppose we have more 2 interfaces with the same default method. What will happen when we try to implment both the interfaces in the same class.?

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• Q2. What are the different types of data binding in Angular?

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• Q3. When to use Inline Template vs External Template in Angular?

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• Q4. What are the two types of compiler in angular?

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• Q5. Which module is used for http calls in Angular?

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• Q6. What are projections in Spring Data JPA?

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• Q7. Terminal vs Intermediate Operations in streams

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• Q8. try vs try-with-resources

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• Q9. Iterator vs ListIterator

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• Q10. Promises vs Observables

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+4 interview questions

Interview Questions

• Q1. Coding question - 1. Create a immutable class of orders. What happens when two objects are created out of it. 2.Using the immutable orders create a set of orders and how will you sort these out. 3.Given a List of list of string of integers , find the average of each list?

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• Q2. How are 4-5 microservices connected in rest api's? which technique you are using?

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• Q3. Explain Spring Cloud and how you are using in microservices?

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• Q4. what are microservices according to you?

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• Q5. Explain Microservices Architecture used in your project

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• Q6. Explain your deployment build config?

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• Q7. Programs and some questions on microservices

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• Q8. Core java basic questions

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Interview Questions

• Q1. Db optimizations, performance enhancements, query optimization, how to handle huge data etc

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• Q2. Core Java, Spring boot annotations, basic code flow, current role, angular basics

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• Q3. How does string work in java meaning, how its stored and how its reference is saved in pool

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• Q4. What is difference between object and instance in java

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• Q5. What is class and object in java

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• Q6. How much java and ui you know

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• Q7. What is heap and stack memory

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• Q8. Questions on spring boot and rest api

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• Q9. Write a java code to find second largest element

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Interview Questions

• Q1. Questions in this round were more related to nitty gritty of Java and spring, like what will happen if you just overrride equals and not hashcode, what will happend if you swap stereotype annotations,

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• Q2. In this round someone from a different team that you will be joining will ask technical question of easy to medium degree of difficulty related to Java, angular and spring

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• Q3. Typical theory questions realted to Java colllection, Java memory management, spring.

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Interview Questions

• Q1. Write code for Builder/Factory Pattern, basically anything other than Singleton

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• Q2. Write snippet for creating an Entity Class.

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• Q3. Why is Redux used in React

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• Q4. Write Snippet to create two beans

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• Q5. Transaction Management in Hibernate

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• Q6. Attached Entity vs Detached Entity

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• Q7. Filter a List using Streams

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• Q8. Different Types of Autowiring

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• Q9. Sort an Employee HashMap

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• Q10. Lazy vs Eager Fetch

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+2 interview questions

Interview Questions

• Q1. How to to compare two objects with same class (equals & Hashcode methods)

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• Q2. Springboot questions basics like How to connect to 2 databases at a time How to change the table name in entity class(@Table)

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• Q3. Java vs Javascript , Meaning of Synchronization in Java , Multihreading in Js

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• Q4. Write a pojo class to display the Employee Details,Pojo vs Bean

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• Q5. JPA Repository inbuilt methods

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Interview Questions

• Q1. string creation literal and new, multithreading, why hibernate jpa why not hibernate, callable vs runnable, can you talk about exceptions, if you want your main thread ti wait what will you do

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• Q2. advantages of spring, design patterns, lambda expressions, versions of java, java 7 features, java streams, how will you use 2 versions of URI

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Interview Questions

• Q1. Explain how Spring Framework works? Explain microservices and its uses? Explain the difference between MySQL database & MongoDB

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• Q2. Given a string containing just the characters '{','}','(',')', '[',']' determine if the input string is valid. Leetcode #20

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• Q3. JAVA version, Spring Framework importance etc

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• Q4. Explain about CORS, AuthGuard

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Interview Questions

• Q1. 1)Core java concepts - encapsulation, inheritance, polymorphism, Abstration 2)Option class methods 3) Objcet methods 4)Java method reference. 5) Design Patterns

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• Q2. Design Patten, Rest APIs, Spring boot Configuration, Angular application testing strategy, AOT and JIT Diff

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Interview Questions

• Q1. Serialisation and it's working Finally,finalize,final difference Exceptions catch order Transient,volatile Object class Method hiding Coding using hashmap Reverse a string without inbuilt functions SQL fetch second highest salary

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• Q2. OOPS concepts Spring core Hibernate

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