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I applied via Approached by Company and was interviewed in Apr 2024. There were 4 interview rounds.
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I appeared for an interview before Jun 2016.
I applied via Job Portal and was interviewed in Apr 2021. There was 1 interview round.
I applied via LinkedIn and was interviewed in May 2021. There were 4 interview rounds.
I applied via Naukri.com and was interviewed in Sep 2020. There were 3 interview rounds.
The HashMap class is used to represent key-value pairs in Java.
HashMap is a part of the Java Collections Framework.
It allows null values and only one null key.
It provides constant-time performance for basic operations like get and put.
Example: HashMap
Abstraction is the process of simplifying complex systems by focusing on essential details and hiding unnecessary complexities.
Abstraction allows us to create models or representations of real-world objects or systems in software.
It helps in managing complexity by breaking down a system into smaller, more manageable parts.
Abstraction provides a level of indirection, allowing changes to be made in one part of the system...
try-catch is used in Java to handle exceptions and prevent program crashes.
try-catch blocks are used to catch and handle exceptions that may occur during program execution.
It allows the program to gracefully handle errors and prevent the program from crashing.
The try block contains the code that may throw an exception, and the catch block handles the exception.
Multiple catch blocks can be used to handle different types...
The statement to use for selecting based on integer inputs is the 'switch' statement.
The 'switch' statement allows for multiple cases to be evaluated based on the value of an integer input.
Each case represents a possible value of the input, and the corresponding code block is executed if the value matches.
The 'switch' statement also provides a 'default' case which is executed if none of the cases match the input value.
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I applied via Naukri.com and was interviewed in Oct 2021. There was 1 interview round.
I applied via Recruitment Consultant and was interviewed in Oct 2021. There were 3 interview rounds.
HCL is a global IT services company providing software engineering and consulting services.
HCL is a multinational company headquartered in India.
They offer a wide range of IT services including software development, testing, and maintenance.
HCL has a strong presence in various industries such as healthcare, finance, and manufacturing.
They have partnerships with leading technology companies like Microsoft, IBM, and Orac...
posted on 6 Feb 2024
I applied via Recruitment Consulltant and was interviewed before Feb 2023. There was 1 interview round.
I applied via Naukri.com and was interviewed in Jun 2022. There were 2 interview rounds.
Abstraction is a concept of hiding implementation details while interface is a contract that defines the behavior of a class.
Abstraction is achieved through abstract classes and methods
Interface is a collection of abstract methods
Abstraction is used for reducing complexity and increasing efficiency
Interface is used for achieving multiple inheritance and loose coupling
Abstraction is a way of achieving data abstraction w...
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