Calance Software Interview Questions and Answers

Mcqs questions based on java full stack

Q1. About java and it’s uses
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Q2. Personal details , info
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Q1. Ctc discussion with manager
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Q2. Crct discussion with manager
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Q1. Create a procedure
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Create a procedure to sort an array of integers in ascending order.
• Declare a function that takes an array of integers as input

• Implement a sorting algorithm like bubble sort, selection sort, or insertion sort

• Return the sorted array
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Q2. Create xml and declare xml
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Creating and declaring XML involves defining the structure and content of the XML document.
• Define the XML version and encoding at the beginning of the document

• Declare the root element and any nested elements with opening and closing tags

• Include attributes within the opening tag to provide additional information

• Use self-closing tags for elements without content

• Example:
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Q1. I was asked some questions related to Node.js, WebSockets, and streams.
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Coding Que - Find minimum in a rotated sorted array with duplicates.

Same sample coding exam

Q1. Ask technical questions
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Q2. Python, django and SQL questions
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Q3. List, tuple, orm, queries questions
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Q4. Company working environmentquestions
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Q1. Self introduction questions
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Q1. What are oops concepts in java, explain real time scenario
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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
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Q2. Uses of interface, inheritance
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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
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Q3. SQL query for join of tables
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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
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Q4. Java concepts used in your project
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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
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Q5. Overloading vs overriding, practical uses
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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
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English grammar questions

Q1. Queried about educational background
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Q2. Queried if signing a contract with company is okay.
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They asked me about the basic coding question and then they went to medium lvl on arrays

They asked me about SDLC, OS , JAVA MEMORY MANAGEMENT and Arrays

Q1. About my projects how you approached and why you choosen this way and what is the uniqueness of this project
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Q2. Basic Java and OOPS and DSA related and SDLC, OS
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