Zensar Technologies Fullstack Java Developer Interview Questions and Answers

Q1. JVM related Questions
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Q2. Angular features
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Q3. React Features and how to deploy
Ans. 
React is a JavaScript library for building user interfaces. Deployment can be done using various methods.
• React features include virtual DOM, component-based architecture, JSX syntax, and state management.

• Deployment can be done using tools like Heroku, Netlify, AWS, or manually by building and serving static files.

• Continuous integration and deployment (CI/CD) pipelines can be set up to automate the deployment process.

• Se...read more
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Probability, Logical Reasoning, etc.

4 Basic coding questions
You can choose any language you want to code from.
Questions like palindrome and string reverse were asked.

Q1. Asked about the project I had done.
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Q2. Comfortable with relocation
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Just some basic questions.

Total 6 questions. 4 basic and 2 advanced.

Q1. Write a program for Fibonacci?
Ans. 
Program to generate Fibonacci series using Java
• Use a loop to generate Fibonacci series

• Start with 0 and 1 as the first two numbers

• Add the previous two numbers to get the next number

• Repeat the process until the desired number of terms
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Q2. Write a code for inheritance ?
Ans. 
Inheritance in Java allows a class to inherit properties and behaviors from another class.
• Create a parent class with common properties and methods

• Create a child class that extends the parent class

• Child class can access parent class properties and methods
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It was easy to answer all the questions,basics of aptitude

There were 10 members in the gd and it went smoothly

Q1. Asked about my project
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Q2. About project , willing to relocate and some other project related questions
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Easy

Java

Q1. Java basic questions
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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().

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.
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Q2. Exlplaing Multhreading.
Ans. 
Multithreading is a programming technique that allows concurrent execution of two or more threads for improved performance.
• Multithreading enables parallel execution, improving application responsiveness.

• Each thread runs independently, sharing the same memory space, which can lead to resource contention.

• Java provides built-in support for multithreading through the Thread class and Runnable interface.

• Example: A web serve...read more
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Mine sweeper logic for a box click

Q1. JavaScript objects
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Q1. Delete element from linked list
Ans. 
To delete an element from a linked list, update the pointers of the previous node to skip the node to be deleted.
• Traverse the linked list to find the node to be deleted

• Update the 'next' pointer of the previous node to skip the node to be deleted

• Free the memory allocated to the node to be deleted
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Q1. Expected salary
Ans. 
I expect a competitive salary that reflects my skills, experience, and the industry standards for a Senior Software Engineer.
• Research industry standards: For example, Glassdoor or Payscale can provide insights into average salaries for similar roles.

• Consider my experience: With over 5 years in software development and expertise in multiple programming languages, I bring significant value.

• Location matters: Salaries can ...read more
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