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Oracle
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I applied via Campus Placement and was interviewed in Aug 2024. There were 3 interview rounds.
Basic one along with os, dbms fundamentals
One question can be solved using dp
A palindromic substring is a string that reads the same forwards and backwards.
Use dynamic programming to find the longest palindromic substring.
Start by considering each character as the center of a potential palindrome.
Expand outwards from each center to check for palindromic property.
Keep track of the longest palindromic substring found so far.
Example: Input 'babad', Output 'bab' or 'aba'.
I applied via Campus Placement and was interviewed before Dec 2023. There were 2 interview rounds.
Verbal, quants and logical reasoning. 160mins duration
Dynamic programming questions on tree and linked lists
I applied via LinkedIn and was interviewed in Jun 2022. There were 2 interview rounds.
The online test consisted of 4 sections, Aptitude, logical reasoning, Computer Programming and English Comprehension.
What people are saying about Oracle
I applied via Campus Placement and was interviewed before Sep 2021. There were 4 interview rounds.
Questions related to DSA, Basic English, Operating System and DBMS
2 Coding Questions related to trees and graphs
OOPS fundamentals include encapsulation, inheritance, polymorphism, and abstraction.
Encapsulation: Bundling data and methods together in a class.
Inheritance: Creating new classes from existing ones, inheriting their properties and behaviors.
Polymorphism: Objects of different classes can be treated as objects of a common superclass.
Abstraction: Hiding complex implementation details and providing simplified interfaces.
Code for finding the Lowest Common Ancestor (LCA) of a binary tree.
Start by checking if the root is null or equal to either of the given nodes. If so, return the root.
Recursively search for the LCA in the left and right subtrees.
If both nodes are found in different subtrees, return the root as the LCA.
If both nodes are found in the same subtree, continue searching in that subtree.
Oracle interview questions for designations
posted on 10 May 2021
I applied via Campus Placement and was interviewed in Nov 2020. There were 4 interview rounds.
posted on 26 Oct 2020
I applied via Naukri.com and was interviewed in Sep 2020. There were 4 interview rounds.
Data scraping, computer vision, agile methodologies, change request, and testing methods are all important aspects of software engineering.
Data scraping involves extracting data from websites or other sources.
Computer vision involves using algorithms to interpret and analyze visual data.
Agile methodologies are a set of principles for software development that prioritize flexibility and collaboration.
Change requests are...
posted on 30 Nov 2021
I applied via Recruitment Consultant and was interviewed before Nov 2020. There were 3 interview rounds.
Find sum of squares of numbers in list using stream API.
Use mapToInt() to convert list of integers to IntStream
Use map() to square each element of IntStream
Use sum() to get the sum of squares
Searching in 2D sorted array row wise and column wise.
Start from the top right corner or bottom left corner
Compare the target with the current element
Move left or down if target is smaller or move right or up if target is larger
Repeat until target is found or out of bounds
posted on 8 Apr 2021
posted on 19 May 2022
I appeared for an interview before May 2021.
Round duration - 60 Minutes
Round difficulty - Easy
Given a binary tree with 'N' nodes, your task is to print the nodes in spiral order traversal.
The binary tree is represented i...
Print nodes of a binary tree in spiral order traversal.
Use a queue to perform level order traversal of the binary tree.
Alternate between printing nodes from left to right and right to left at each level.
Handle null nodes represented by '-1' appropriately.
Example: For input '1 2 3 -1 -1 4 5 -1 -1 -1 -1', the output should be '1 3 2 4 5'.
Round duration - 60 Minutes
Round difficulty - Easy
You are given a list of N
strings called A
. Your task is to determine whether you can form a given target string by combining one or more strings from A
.
The strings from A
c...
Given a list of strings, determine if a target string can be formed by combining one or more strings from the list.
Iterate through all possible combinations of strings from the list to form the target string.
Use recursion to try different combinations of strings.
Check if the current combination forms the target string.
Return true if a valid combination is found, otherwise return false.
Round duration - 60 Minutes
Round difficulty - Easy
Design an elevator system for efficient vertical transportation.
Divide building into zones to optimize elevator usage.
Implement algorithms for efficient elevator scheduling.
Include safety features like emergency stop buttons and overload sensors.
Consider user interface for passengers to select floors and monitor elevator status.
Tip 1 : Never give up
Tip 2 : Practice
Tip 3 : Be positive
Tip 1 : Keep it short
Tip 2 : Highlight skills and achievements
posted on 4 Mar 2021
Learning programming languages is important for software engineers to effectively communicate with computers and develop software solutions.
Programming languages are the foundation of software development.
Learning multiple languages expands the range of problems a software engineer can solve.
Different languages have different strengths and are suited for different tasks.
Knowing multiple languages improves adaptability ...
based on 2 interviews
2 Interview rounds
based on 10 reviews
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