Uipath Senior Software Engineer Interview Questions and Answers

Q1. What final class and method
Ans. 
The final class and method are used to prevent inheritance and method overriding respectively.
• Final class: A final class cannot be subclassed. It is often used for utility classes or classes that should not be extended.

• Final method: A final method cannot be overridden by subclasses. It is used to prevent modification of a method's behavior in subclasses.
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Q2. PHP reference variable
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Q3. Find duplicate numbers
Ans. 
Find duplicate numbers in an array of strings.
• Iterate through the array and keep track of the count of each number using a hash map.

• If the count of a number is greater than 1, it is a duplicate.

• Return the list of duplicate numbers.
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Q4. Echo variable in single quote what will be output
Ans. 
The output will be the literal string of the variable, without any variable interpolation.
• When a variable is echoed in single quotes, it is treated as a literal string.

• No variable interpolation or special characters are interpreted.

• The output will include the variable name itself, not its value.
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Q5. What is oops concept
Ans. 
Object-oriented programming (OOP) is a programming paradigm that uses objects to represent and manipulate data.
• OOP is based on the concept of classes and objects.

• It focuses on encapsulation, inheritance, and polymorphism.

• Encapsulation hides the internal details of an object and provides a public interface.

• Inheritance allows classes to inherit properties and methods from other classes.

• Polymorphism allows objects of diff...read more
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Q6. Having clause in MySQL
Ans. 
The HAVING clause is used in MySQL to filter the results of a GROUP BY query based on a condition.
• The HAVING clause is similar to the WHERE clause, but it operates on grouped rows rather than individual rows.

• It is used in conjunction with the GROUP BY clause.

• The HAVING clause is used to filter the results of a GROUP BY query based on a condition that applies to the grouped rows.

• It is typically used to specify condition...read more
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2 dsa questions need to be implemented in 1hr

Q1. Projects you have worked on. 1. vector implementation in C++
Ans. 
Implemented vector data structure in C++
• Used templates to create a generic vector class

• Implemented basic vector operations like push, pop, insert, erase

• Optimized vector resizing by using exponential growth

• Used iterators to traverse the vector elements

• Implemented vector algorithms like sort and binary search
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Q1. Compensation, expected and other document submitting.
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It started with basic introduction, than move ahead with Java, Spring boot question in the end, he asked one leetcode medium question based on DP . Ques : Find a minimum number of jumps required to reach the end of the array, and each index , it can jump arr[index] time at max, you need to calculate minimum number of steps required to reach at the end.

The interviewer ask me to write code on notepad like all the api class controller . Too rude knows nothing taking interview sitting at home worst experiance

Php

Q1. Salary expectation for job
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Q1. Scenario based questions to test our experience.
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Q1. Technical questions and puzzles.
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A company designed the test basically to understand the nature of the interviewee. Simple test.

Q1. OOP Questions like inheritance, polymorphism, etc.
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