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I applied via Campus Placement and was interviewed before Feb 2023. There were 2 interview rounds.
MCQ Based on DSA and computer fundamentals
Top trending discussions
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().
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.
I applied via Naukri.com and was interviewed in Jul 2021. There were 3 interview rounds.
4 senior interviewer in group discus
I applied via Company Website and was interviewed in Aug 2023. There was 1 interview round.
OOPs concept in Java is a programming paradigm that focuses on objects and their interactions.
OOPs stands for Object-Oriented Programming.
It involves the use of classes, objects, inheritance, polymorphism, and encapsulation.
Classes are blueprints for creating objects, and objects are instances of classes.
Inheritance allows classes to inherit properties and behaviors from other classes.
Polymorphism allows objects of dif...
A palindrome program in Java checks if a given string is the same when read forwards and backwards.
Convert the string to lowercase to ignore case sensitivity.
Use two pointers, one starting from the beginning and the other from the end of the string.
Compare the characters at the two pointers, moving them towards the center until they meet or cross each other.
If at any point the characters are not equal, the string is no...
Creating a table named 'questions' in MySQL.
Use the CREATE TABLE statement to create the table.
Specify the table name, column names, and their data types.
Set primary key, foreign key, and other constraints if required.
Add any additional properties like auto-increment, default values, etc.
Execute the SQL statement to create the table.
I was interviewed in Feb 2022.
I applied via Naukri.com and was interviewed in Apr 2024. There were 3 interview rounds.
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:...
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...
I applied via Company Website and was interviewed before May 2022. There were 3 interview rounds.
General aptitude, logical reasoning, english and Pseudocodes
I applied via Approached by company and was interviewed in Dec 2021. There were 2 interview rounds.
I applied via Approached by Company and was interviewed in Feb 2024. There was 1 interview round.
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