10+ ICICI Bank Interview Questions and Answers

Given a rotated sorted array, find the index of a given integer 'K'.

• Use binary search to efficiently find the index of 'K'.

• Consider the rotation of the array while performing the search.

• Handle cases where 'K' is not present in the array by returning -1.

Software Development Cycle is a process of designing, creating, testing, and deploying software.

• The phases of Software Development Cycle are Planning, Analysis, Design, Implementation, Testing, Deployment, and Maintenance.

• Planning involves defining the project scope, goals, and requirements.

• Analysis involves gathering and analyzing user requirements.

• Design involves creating a detailed design of the software.

• Implementation involves writing code and integrating different compon...read more

Waterfall model is a linear sequential approach to software development.

• Phases: Requirements gathering, Design, Implementation, Testing, Deployment, Maintenance

• Each phase must be completed before moving to the next

• No going back to previous phases

• Documentation is important

• Less flexible than Agile model

Query to find the nth highest salary from a database

• Use ORDER BY and LIMIT in the query

• Consider handling ties if multiple employees have the same salary

• Example: SELECT DISTINCT salary FROM employees ORDER BY salary DESC LIMIT n-1, 1

Access modifiers in Java control the visibility and accessibility of classes, methods, and variables.

• There are four types of access modifiers in Java: public, private, protected, and default.

• Public: accessible from any other class.

• Private: accessible only within the same class.

• Protected: accessible within the same package and subclasses.

• Default: accessible only within the same package.

• Example: public class MyClass { private int myVar; protected void myMethod() {}}

OOP concepts are fundamental principles in object-oriented programming that help in organizing and designing code.

• Encapsulation: Bundling data and methods that operate on the data into a single unit (class).

• Inheritance: Allowing a class to inherit properties and behavior from another class.

• Polymorphism: The ability for objects of different classes to respond to the same message in different ways.

• Abstraction: Hiding the complex implementation details and showing only the neces...read more

Scrum is an agile methodology used for software development and project management.

• It involves iterative and incremental development.

• A team works on a project in sprints, typically 2-4 weeks long.

• The team has daily stand-up meetings to discuss progress and plan for the day.

• The product owner prioritizes the backlog of work.

• At the end of each sprint, a review and retrospective are held to evaluate progress and plan for the next sprint.

The task is to partition an array into two subsets such that the absolute difference between subset sums is minimum.

• Iterate through all possible subsets of the array

• Calculate the sum of each subset

• Find the minimum absolute difference between the subset sums

Given a string, find the longest palindromic substring, prioritizing the one with the smallest start index.

• Iterate through the string and expand around each character to find palindromes

• Keep track of the longest palindrome found and its starting index

• Return the longest palindromic substring with the smallest start index

Agile model is an iterative approach to software development that emphasizes flexibility and customer satisfaction.

• Agile model involves continuous collaboration between cross-functional teams and customers

• It prioritizes working software over comprehensive documentation

• It allows for changes and adjustments to be made throughout the development process

• Examples of agile methodologies include Scrum, Kanban, and Extreme Programming (XP)

The task is to reverse a given doubly linked list and return the head of the modified list.

• Create three pointers: prev, current, and next.

• Iterate through the linked list and update the next and prev pointers for each node.

• Finally, update the head pointer to the last node visited and return it as the head of the reversed list.

Count the total instances of equivalent prime groups in a day divided into equal parts.

• Divide the day into equal parts and check for prime groups at the same position in different parts.

• Each prime group should consist of prime numbers occurring at different parts of the day.

• Return the total number of equivalent prime groups found.

• Example: For DAY_HOURS = 20 and PARTS = 2, there are 2 prime groups: 3-13 and 7-17.

Find the third largest element in an array of distinct integers.

• Sort the array in descending order and return the element at index 2.

• Handle cases where there are less than 3 elements in the array.

• Consider edge cases like negative integers and duplicates.

The task is to sort a list of integers based on their frequency of repetition, with the element with the highest frequency first.

• Count the frequency of each element in the list using a dictionary.

• Sort the elements based on their frequency in descending order.

• If two elements have the same frequency, maintain their original order.

• Return the sorted list.

The task is to find the number of distinct ways to move from the 0th to the Nth stair by ascending one or two steps at a time.

• Use dynamic programming to solve this problem efficiently.

• The number of ways to reach the Nth stair is the sum of the number of ways to reach the (N-1)th stair and the number of ways to reach the (N-2)th stair.

• Handle base cases for N=0 and N=1 separately.

• Consider using memoization to avoid redundant calculations.

• Example: For N=3, the number of distinct...read more

I have worked on projects involving web development, machine learning, and mobile app development using technologies such as React, Python, and Flutter.

• Web development project using React and Node.js for frontend and backend

• Machine learning project using Python and TensorFlow for model training and deployment

• Mobile app development project using Flutter for cross-platform app development

OOPs stands for Object-Oriented Programming. It is based on four main pillars: Inheritance, Encapsulation, Abstraction, and Polymorphism.

• Inheritance: Allows a class to inherit properties and behavior from another class. Example: class B extends class A.

• Encapsulation: Bundling data and methods that operate on the data into a single unit. Example: using private access modifiers to restrict access to certain data.

• Abstraction: Hiding the complex implementation details and showing...read more