Xeliumtech Solutions Interview Questions and Answers

Q1. Basic of git, GitHub like can we use git without GitHub, encryption, decryption, hashing.
Add your answer
Q2. Basic questions on js, java, jQuery. Basic on website handling, like how can we implement delay in the code of a website.
Add your answer

4 Coding Questions Were Given.
Check Palindrome String
Longest Increasing Subsequence
Group Anagrams
Add Two Numbers(Linked List)

Questions were picked from leetcode but the restriction of not using any inbuild function made them difficult to solve in the given time frame.

Q1. Basic Java Technical Questions
Add your answer
Q2. Throws Vs Throw
Ans. 
Throws is used for checked exceptions in Java, while throw is used to explicitly throw an exception.
• Throws is used in method signature to declare that the method may throw a checked exception.

• Throw is used to actually throw an exception in the code.

• Example: public void method() throws IOException { //code }

• Example: throw new IOException();
Answered by AI
Add your answer
Q3. Method Overriding Basics and Output-Based Questions
Add your answer
Q4. Springboot annotations
Add your answer
Q5. Inheritance and Concept of Abstract Classes and Interfaces
Ans. 
Inheritance allows a class to inherit properties and behaviors from another class. Abstract classes cannot be instantiated and can have abstract methods. Interfaces define a contract for classes to implement.
• Inheritance allows a class to inherit properties and behaviors from another class

• Abstract classes cannot be instantiated and can have abstract methods

• Interfaces define a contract for classes to implement
Answered by AI
Add your answer

Q1. Some core Java questions
Add your answer

Q1. Simple intro about yourself
Add your answer

General knowledge and logical mathematics.

Q1. 2 week training with review
Add your answer
Q2. Based on your review task.
Add your answer

Q1. What are oops concepts in java, explain real time scenario
Ans. 
OOPs concepts in Java include inheritance, polymorphism, encapsulation, and abstraction.
• Inheritance allows a subclass to inherit properties and methods from a superclass.

• Polymorphism allows objects to take on multiple forms and behave differently based on their context.

• Encapsulation hides the implementation details of an object and only exposes necessary information.

• Abstraction allows for the creation of abstract class...read more
Answered by AI
View 1 more answer
Q2. Uses of interface, inheritance
Ans. 
Interfaces define contracts for behavior, while inheritance allows for code reuse and polymorphism.
• Interfaces allow for loose coupling and abstraction, enabling multiple implementations of the same behavior.

• Inheritance allows for code reuse and extension of existing classes, reducing code duplication.

• Polymorphism allows objects of different classes to be treated as if they were of the same class, simplifying code and i
Answered by AI
Add your answer
Q3. SQL query for join of tables
Ans. 
SQL query for joining tables
• Use JOIN keyword to combine two or more tables based on a related column

• Specify the columns to be selected using SELECT keyword

• Use ON keyword to specify the condition for joining the tables

• Different types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL OUTER JOIN
Answered by AI
Add your answer
Q4. Java concepts used in your project
Ans. 
Used Java concepts such as inheritance, polymorphism, and exception handling in my project.
• Implemented inheritance to create a base class and derived classes with specific functionalities.

• Utilized polymorphism to allow objects of different classes to be treated as if they were of the same class.

• Implemented exception handling to handle errors and prevent program crashes.

• Used interfaces to define a set of methods that a ...read more
Answered by AI
Add your answer
Q5. Overloading vs overriding, practical uses
Ans. 
Overloading is having multiple methods with the same name but different parameters. Overriding is having a method in a subclass with the same name and parameters as a method in the superclass.
• Overloading is used to provide different ways to call a method with different parameters

• Overriding is used to provide a specific implementation of a method in a subclass

• Overloading is resolved at compile-time while overriding is r...read more
Answered by AI
Add your answer

Q1. What you know about the sales
Ans. 
Sales is the process of selling products or services to customers in exchange for money.
• Sales involves identifying potential customers and convincing them to purchase a product or service.

• It includes building relationships with customers, understanding their needs, and providing solutions.

• Sales also involves negotiating prices, closing deals, and following up with customers for repeat business.

• Sales can be done through...read more
Answered by AI
Add your answer

Q1. Do you know which language is use for frontend technology
Ans. 
The language used for frontend technology is typically HTML, CSS, and JavaScript.
• HTML is used for structuring web pages

• CSS is used for styling the web pages

• JavaScript is used for adding interactivity to the web pages
Answered by AI
Add your answer

Q1. Regarding salary discussion
Add your answer