Zeta | SDE 1 | Java Developer

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zeta
SDE 1 Java Developer1.1 years
June 12, 2025 • 5 reads

Summary

I interviewed for an SDE 1 Java Developer role at Zeta, which involved two rounds focusing on data structures & algorithms, OOPs, system fundamentals, and behavioral questions. Despite solving specific problems, I was ultimately rejected.

Full Experience

Current Experience: 1.10 Years
College: Tier-2
Previous Organization: One of the MNCs

HR contact with me through naukri protal.

1st round:

1st question -
You are given an integer array. You have to find the length of the valley for each element.
Vally is defined as, Let i be the current index and l is the leftmost index, r is the rightmost index satisflying property a[l]>a[l+1]>…>a[i]..<a[r-1]<a[r], then length is (r-l+1) is the length of the valley.
Example,
A : [7,2,1,5,7,9]
Answer : [1,2,6,3,2,1]

2nd question -
Given two strings s1 and s2 such that S1<S2. Both strings length are equals. Find the total number of lexicographic strings between S1 and S2.
S1 = ACX
S2 = ADB

2nd round:
Past project discussion (all api's, database table, sql query etc)

car - maruti, toyota, bmw
engine - 1, 2,4
How to implement it using OOP's

Solid principles
Tcp, udp
Http, https
CAP theorem

Behavioral questions

Verdict: rejected.

Interview Questions (3)

Q1
Length of Valley for Each Element in Array
Data Structures & Algorithms

You are given an integer array. You have to find the length of the valley for each element. Vally is defined as, Let i be the current index and l is the leftmost index, r is the rightmost index satisflying property a[l]>a[l+1]>...>a[i]..<a[r-1]<a[r], then length is (r-l+1) is the length of the valley. Example, A : [7,2,1,5,7,9] Answer : [1,2,6,3,2,1]

Q2
Count Lexicographic Strings Between Two Given Strings
Data Structures & Algorithms

Given two strings s1 and s2 such that S1<S2. Both strings length are equals. Find the total number of lexicographic strings between S1 and S2. S1 = ACX S2 = ADB

Q3
OOP Design for Car and Engine System
System Design

Given car types (maruti, toyota, bmw) and engine types (1, 2, 4), how would you implement this using Object-Oriented Programming principles?

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