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IBM Fullstack Java Developer Interview Questions and Answers
IBM Fullstack Java Developer Interview Experiences
2 interviews found
I applied via Naukri.com and was interviewed in Apr 2024. There were 3 interview rounds.
(2 Questions)
- Q1. Tell me about internal working of JVM
- Q2. Tell me about SAGA pattern in Microservices
- Ans.
SAGA pattern is a design pattern used in microservices architecture to manage distributed transactions.
SAGA pattern breaks down a long-running transaction into a series of smaller, independent transactions.
Each step in the SAGA pattern is a separate service that communicates with other services through events.
If a step fails, compensating transactions are executed to rollback the changes made by previous steps.
Example:...
(2 Questions)
- Q1. Tell me about your current project structure
- Q2. What is an API , how would you secure an API
- Ans.
API stands for Application Programming Interface. It defines the methods and data formats that applications can use to communicate with each other.
API is a set of rules and protocols that allows different software applications to communicate with each other.
To secure an API, you can use authentication methods like OAuth, API keys, or JWT tokens.
Implementing encryption (HTTPS) and rate limiting can also enhance API secu...
(2 Questions)
- Q1. Why do you want to relocate to Bangalore
- Q2. Tell me about one instance where you faced pressure and how did you overcome ?
Interview Preparation Tips
(1 Question)
- Q1. A senior in my current team was asking questions. He was helping to complete my answers. Be prepared with oops, collection, thread concepts, spring, hibernate basics thoroughly.
Interview Preparation Tips
Interview questions from similar companies
Fullstack Java Developer Interview Questions & Answers
DXC Technology
Anonymous
posted on 15 Feb 2022
1)Driffience between Abstract class &
Interface.
-abstract class
represents property
&
behaviour of an object
whereas
interface
represents
behaviour
of an object.
2)Driffience between equal() vs ==operator.
equal() is
an object class method
whereas
equal() of string class
override
the object class equal().
3)can we use pointer's in Java.
Not explicitly but implicitly we can use pointer's in java.
Dynamic m/m refers with help of pointer's but java does not support the pointer's.
when we r creating an object in java refrence varaible of an object holds the identity that is nothing but an implicit pointer that holds an unique identity of an object.
4)How we can print object ID.
-Object ID printed with help of object class which is a service provider class having 9().
5)what is object class.
-it is a super class of all predefined & userdefined class.
6)Write a prog to get name of main thread in java.
-class A
{
psvm(String args [])
{
s.o.pln(Thread.currentThread().getName());
}
}
7)length vs length()
-length
is
data menmber
of proxy class
whereas
length() is a string class().
(2 Questions)
- Q1. Explain JVM in ur own language.
- Ans.
JVM is an abstract machine that executes Java bytecode.
JVM stands for Java Virtual Machine.
It is responsible for interpreting and executing Java bytecode.
JVM provides platform independence to Java programs.
It has its own memory management system and garbage collector.
JVM can be implemented on different operating systems.
Examples of JVM languages include Java, Kotlin, and Scala.
- Q2. Exlplaing Multhreading.
Interview Preparation Tips
for to improve
i) strength,
ii)creativity
&
problem analysis & sloving attitude
with accessing fundamental stratergies of software development.
Skills evaluated in this interview
I applied via Approached by company and was interviewed in Dec 2021. There were 2 interview rounds.
(2 Questions)
- Q1. Java api calling from angular application and all security and integration related question.
- Q2. Project structure related question
(1 Question)
- Q1. Project structure design patterns
Interview Preparation Tips
- api integration
- angular project structure
How java api allow any host to access it's api
annotation for api designing
Selected
I applied via Campus Placement and was interviewed in May 2023. There were 3 interview rounds.
(5 Questions)
- Q1. Tell you about me self
- Q2. Coding test for me
- Q3. Servlet question
- Q4. Jdbc question and mysql database
- Q5. What is cookie ? why use to create web application
- Ans.
A cookie is a small piece of data stored on the user's computer by the web browser, used to track user activity and personalize user experience.
Cookies are used to store user preferences, login information, and shopping cart items.
They help websites remember users and their preferences, making the browsing experience more personalized.
Cookies can also be used for tracking user behavior, such as analyzing website traffi...
Core java, servlet ,jdbc
Interview Preparation Tips
Skills evaluated in this interview
I applied via Walk-in and was interviewed before Apr 2023. There was 1 interview round.
(1 Question)
- Q1. Hash map implementation
- Ans.
Hash map is a data structure that stores key-value pairs and allows for fast retrieval of values based on keys.
Hash map uses hashing to map keys to indices in an array.
It allows for constant time complexity O(1) for insertion, deletion, and retrieval operations.
Example: HashMap<String, Integer> map = new HashMap<>(); map.put("key", 123); int value = map.get("key");
Skills evaluated in this interview
(2 Questions)
- Q1. Agile methodology
- Q2. Decorators in annular
- Ans.
Decorators in Angular are functions that allow you to modify or extend the behavior of classes or methods.
Decorators are used to add metadata to classes or methods in Angular applications.
They are prefixed with @ symbol and are followed by the decorator name.
Common decorators in Angular include @Component, @Directive, @Injectable, @Input, @Output, etc.
Decorators can be used for various purposes such as defining compone...
(1 Question)
- Q1. Remove duplicate value in arraylist
- Ans.
Use a HashSet to remove duplicates from an ArrayList of strings.
Create a HashSet and add all elements from the ArrayList to it.
Clear the ArrayList and then add all elements back from the HashSet.
Interview Preparation Tips
Skills evaluated in this interview
I appeared for an interview in Feb 2022.
(1 Question)
- Q1. Java common question on hashmap, stream api
Interview Preparation Tips
I applied via Approached by Company and was interviewed in Feb 2024. There was 1 interview round.
(1 Question)
- Q1. Java basics with oops concepts
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