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HEPL - A Cavinkare Group Company Interview Questions and Answers for Freshers
8 Interview questions
Exception handling in Java involves using try-catch blocks to manage errors gracefully and maintain application stability.
Use try-catch blocks to catch exceptions: try { // code that may throw an exception } catch (ExceptionType e) { // handle exception }
Use finally block for cleanup: try { // code } catch (Exception e) { // handle exception } finally { ...
Microservices communicate via APIs, messaging queues, or event-driven architectures to share data efficiently.
1. RESTful APIs: Services expose endpoints for data retrieval. Example: Service A calls Service B's API to get user details.
2. Messaging Queues: Use tools like RabbitMQ or Kafka for asynchronous communication. Example: Service A sends a message to a queue that Service B listens to.
3. gRPC: A high-performan...
Collections in Java are frameworks that provide an architecture to store and manipulate a group of objects.
Collections provide interfaces (List, Set, Map) and classes (ArrayList, LinkedList, HashSet, HashMap) to store and manipulate groups of objects.
Collections framework includes algorithms to manipulate data structures like sorting, searching, etc.
Collections are more flexible and efficient than arrays in Java.
E...
A for loop is a control flow statement for executing a block of code repeatedly based on a condition.
Syntax: for(initialization; condition; increment/decrement) { // code block }
Example: for(int i = 0; i < 5; i++) { System.out.println(i); } // prints 0 to 4
Used for iterating over arrays or collections.
Can be nested: for(int i = 0; i < 3; i++) { for(int j = 0; j < 2; j++) { // code block } }
Enhanced for lo...
Exception handling in Java manages runtime errors, ensuring program stability and providing a way to respond to unexpected conditions.
Java uses try, catch, and finally blocks for exception handling.
A try block contains code that may throw an exception.
Catch blocks handle specific exceptions, e.g., catch (IOException e) {}.
Finally block executes regardless of exception occurrence, e.g., finally { cleanup(); }.
Custo...
Java is a compiled language that is first compiled into bytecode and then interpreted by the Java Virtual Machine (JVM).
Java is first compiled into bytecode by the Java compiler.
The bytecode is then interpreted by the Java Virtual Machine (JVM) at runtime.
This combination of compilation and interpretation makes Java a compiled language with some interpreted features.
Update query to modify data in a database table
Use UPDATE statement followed by table name
Set the column(s) to be updated using SET keyword
Specify the new values for the column(s) to be updated
Add WHERE clause to specify the condition for updating specific rows
There are 12 columns in Bootstrap grid system.
Bootstrap grid system is divided into 12 columns.
Columns can be combined to create different layouts.
Example:
will create a column that spans half of the row.View all Junior Java Developer interview questions
HEPL - A Cavinkare Group Company Interview Experiences for Freshers
3 interviews found
I applied via Walk-in and was interviewed in Jul 2024. There was 1 interview round.
(3 Questions)
- Q1. Write an Update Query
- Ans.
Update query to modify data in a database table
Use UPDATE statement followed by table name
Set the column(s) to be updated using SET keyword
Specify the new values for the column(s) to be updated
Add WHERE clause to specify the condition for updating specific rows
- Q2. In Bootstrap how many columns are there ?
- Ans.
There are 12 columns in Bootstrap grid system.
Bootstrap grid system is divided into 12 columns.
Columns can be combined to create different layouts.
Example:
will create a column that spans half of the row.Answered by AIView 1 more answer
- Q3. Is Java Interpreted or Compiler language ?
- Ans.
Java is a compiled language that is first compiled into bytecode and then interpreted by the Java Virtual Machine (JVM).
Java is first compiled into bytecode by the Java compiler.
The bytecode is then interpreted by the Java Virtual Machine (JVM) at runtime.
This combination of compilation and interpretation makes Java a compiled language with some interpreted features.
Answered by AIView 1 more answer
Interview Preparation Tips
Good place to learn and develop skills.
No Bond.
Skills evaluated in this interview
I applied via Walk-in and was interviewed in May 2024. There was 1 interview round.
(3 Questions)
- Q1. What is for loop?
- Q2. Collection in java?
- Q3. Exception handling in Java?
Interview Preparation Tips
- Java basics
- Full stack course
Skills evaluated in this interview
Selected
I appeared for an interview before Apr 2024, where I was asked the following questions.
- Q1. How can you handle exceptions in an application
- Q2. When working with micro services how you get the data from one service to another service
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Interview questions from similar companies
I applied via Campus Placement
It is easy to crack the first round with the basic topics of aptitude.
Must learn string,array,pointer and others to clear this round
Interview Preparation Tips
Java Developer Interview Questions & Answers
EY Global Delivery Services ( EY GDS)
Anonymous
posted on 17 May 2024
I applied via Naukri.com and was interviewed in Apr 2024. There were 2 interview rounds.
(3 Questions)
- Q1. Interfaces and stream coding questions were asked
- Q2. New features added in Java 11,java 8 features, so many questions from oops, Hashmap coding questions were asked, annotations of spring boot were asked
- Q3. Dependency injection
(1 Question)
- Q1. Same questions but they were asked about every topic in detail, better to prepare all the topics in detail.
Interview Preparation Tips
Java Developer Interview Questions & Answers
EY Global Delivery Services ( EY GDS)
Anonymous
posted on 17 May 2024
(2 Questions)
- Q1. Basic Java Question?
- Ans.
Java is a versatile, object-oriented programming language used for building applications across various platforms.
Java is platform-independent due to the Java Virtual Machine (JVM). Example: Write once, run anywhere.
It supports object-oriented programming principles like inheritance, encapsulation, and polymorphism. Example: Class and object creation.
Java has a rich API and a large ecosystem of libraries and frameworks...
- Q2. Related oops concept
Java Developer Interview Questions & Answers
EY Global Delivery Services ( EY GDS)
Anonymous
posted on 26 May 2024
I applied via LinkedIn and was interviewed in Apr 2024. There was 1 interview round.
(1 Question)
- Q1. Deep in Collections, Java 8 features, Arrays, Exceptions
I applied via Naukri.com and was interviewed in Feb 2024. There were 2 interview rounds.
(2 Questions)
- Q1. Find the highest element from a BST and implement insertion operation of BST.
- Ans.
To find the highest element in a BST, perform a right traversal until reaching the rightmost leaf node.
Perform a right traversal starting from the root node until reaching the rightmost leaf node to find the highest element.
Implement the insertion operation by comparing the value to be inserted with each node and traversing left or right accordingly.
Ensure that the BST property is maintained during insertion by placing...
- Q2. Heap Sort with Max Heap
- Ans.
Heap Sort is a comparison-based sorting algorithm that uses a binary heap data structure.
Heap Sort involves building a max heap from the input array, then repeatedly removing the maximum element and rebuilding the heap.
The time complexity of Heap Sort is O(n log n) in the worst case scenario.
Example: Given an array [4, 10, 3, 5, 1], after applying Heap Sort, the sorted array would be [1, 3, 4, 5, 10].
(2 Questions)
- Q1. Delete nth element from end in a LINKEDLIST.
- Ans.
To delete the nth element from the end in a LinkedList, we can use two pointers approach.
Use two pointers - one to traverse the list and another to keep track of the nth element from the end.
Calculate the distance between the two pointers and delete the node at the second pointer.
- Q2. Reverse a LinkedLis
Interview Preparation Tips
Skills evaluated in this interview
Ages, trains, profit losss, hcf lcm, clock, simple interest 30 min
Array string sorting algorithm
Interview Preparation Tips
Java Developer Interview Questions & Answers
EY Global Delivery Services ( EY GDS)
Anonymous
posted on 27 Nov 2024
I applied via Company Website and was interviewed in Oct 2024. There was 1 interview round.
They have asked one coding Questions , and i have done also help of JAVA8 but he said do by JAVA 7 with DSA , I am very disappointed .
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