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CronJ IT Technologies Reactjs Developer Interview Questions and Answers
CronJ IT Technologies Reactjs Developer Interview Experiences
1 interview found
I applied via Naukri.com and was interviewed in May 2024. There was 1 interview round.
(1 Question)
- Q1. When to use class component over functional component?
- Ans.
Class components are used when state or lifecycle methods are needed.
Use class components when you need to manage state or use lifecycle methods
Functional components are preferred for simple UI components without state or lifecycle methods
Class components can be used for more complex logic and functionality
Example: Use class components for forms with input validation and submission handling
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Interview questions from similar companies
(2 Questions)
- Q1. What is the difference between abstract class and an interface in Java?
- Ans.
Abstract class can have both abstract and non-abstract methods, while interface can only have abstract methods.
Abstract class can have constructors, member variables, and methods, while interface cannot.
A class can implement multiple interfaces but can only extend one abstract class.
Abstract classes are used to define a common behavior among subclasses, while interfaces are used to define a contract for classes to impl...
- Q2. An abstract class can have method implements and abstract method, while an interface only contains abstract method (before Java 8) . Abstract classes support single inheritance, whereas interfaces support ...
- Ans.
Abstract classes can have both implemented and abstract methods, while interfaces can only have abstract methods. Abstract classes support single inheritance, interfaces support multiple inheritance.
Abstract classes can have both implemented and abstract methods, providing more flexibility in design.
Interfaces can only have abstract methods, promoting a more strict contract for implementing classes.
Abstract classes sup...
(2 Questions)
- Q1. What is the implementation of Merge Sort in Java?
- Ans.
Merge Sort is a divide and conquer algorithm that divides the input array into two halves, recursively sorts them, and then merges the sorted halves.
Divide the input array into two halves
Recursively sort the two halves
Merge the sorted halves back together
- Q2. What is the implementation of the Quick Sort algorithm in Java?
- Ans.
Quick Sort is a popular sorting algorithm that uses a divide-and-conquer approach to sort elements in an array.
Choose a pivot element from the array.
Partition the array into two sub-arrays: elements less than the pivot and elements greater than the pivot.
Recursively apply the same process to the sub-arrays.
Combine the sorted sub-arrays to get the final sorted array.
Software Developer Interview Questions & Answers
ABCI Infrastructures
Anonymous
posted on 27 Nov 2024
(1 Question)
- Q1. Design tinyurl system design
I applied via Naukri.com and was interviewed in Aug 2024. There was 1 interview round.
DSA leetcode on hackerrank
Software Developer Interview Questions & Answers
Apmosys Technologies
Mityaprangya Das
posted on 24 Sep 2024
I applied via Campus Placement
Easy aptitude, 30 min with 20 question
Interview Preparation Tips
Online test which consists of java, angular, micro services related questions
(1 Question)
- Q1. Difference between static and default methods
- Ans.
Static methods belong to the class itself, while default methods are part of an interface in Java.
Static methods can be called without creating an instance of the class, while default methods are used to provide a default implementation in interfaces.
Static methods are defined using the 'static' keyword, while default methods are defined using the 'default' keyword in Java.
Static methods cannot be overridden in subclas...
Skills evaluated in this interview
I applied via Walk-in and was interviewed in Mar 2024. There was 1 interview round.
(1 Question)
- Q1. Tell me about yourself
Selected
I applied via Company Website and was interviewed in May 2023. There were 4 interview rounds.
Encapsulation, abstraction, interface
(2 Questions)
- Q1. Encapsulation constructor method overloading
- Q2. Interface abstracts
(3 Questions)
- Q1. Why chose this company
- Q2. Why should i hire you
- Q3. How much salary you are expecting
Interview Preparation Tips
- Core Java
- OOPS
Chandan Abhishek
(2 Questions)
- Q1. Basic resume based questions
- Q2. Explain your internship experience
(1 Question)
- Q1. Basic resume based questions
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