Kotak Mahindra Bank Software Engineer Interview Questions and Answers

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Q1. Find the lowest cost when given days you want to use metro if you have cost of a day 1 ,7 and 30 day pass. DP Problem
Ans. 
Using dynamic programming to find the lowest cost for metro passes based on given days.
• Create an array to store the minimum cost for each day.

• Iterate through each day and calculate the minimum cost based on 1, 7, or 30 day pass.

• Update the minimum cost for each day using dynamic programming.

• Return the minimum cost for the total number of days needed.
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Q1. Normal HR Questions
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Behavioural and culture fit

Q1. Java Stream coding questions
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Q2. Java Collections
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Q3. Spring Boot Annotations
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Q4. Sql Queries highest 3 salary employee name
Ans. 
Use SQL query to retrieve the names of the top 3 employees with the highest salary.
• Use the ORDER BY clause to sort the salaries in descending order.

• Use the LIMIT clause to limit the results to the top 3.

• Join the employee table with the salary table to retrieve employee names.
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Q1. What is Overlaoding and overriding?
Ans. 
Overloading is having multiple methods in the same class with the same name but different parameters. Overriding is implementing a method in a subclass that is already defined in the superclass.
• Overloading allows multiple methods with the same name but different parameters in the same class.

• Overriding involves implementing a method in a subclass that is already defined in the superclass.

• Overloading is resolved at compi
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Q2. What are the Java features?
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Java features include object-oriented programming, platform independence, automatic memory management, and multithreading.
• Object-oriented programming: Java supports classes and objects, allowing for modular and reusable code.

• Platform independence: Java programs can run on any platform with the Java Virtual Machine (JVM).

• Automatic memory management: Java uses garbage collection to automatically manage memory allocation ...read more
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Q3. What is abstrack class?
Ans. 
Abstract class is a class that cannot be instantiated and may contain abstract methods.
• Cannot be instantiated directly

• May contain abstract methods that must be implemented by subclasses

• Used to define a common interface for subclasses
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Q1. Technical questions related to security
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Simple algorithm question about sorting

Q1. Algorith question about quick sort
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Q2. Nlonn run time of the sort
Ans. 
The time complexity of the quicksort algorithm is O(n log n).
• Quicksort has an average time complexity of O(n log n).

• The best case time complexity of quicksort is O(n log n) when the pivot element divides the array into two equal halves.

• The worst case time complexity of quicksort is O(n^2) when the pivot element is the smallest or largest element in the array.
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Ms office,Core Java , Tally , C,

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