RBS(NatWest Group) Interview Experience for Java Developer (2 - 5 Yrs Experienced)
Question Details
Round-1 DSA round (Online) - Cleared2 easy-level coding questions based on array and string.Round-2 Machine Coding Round (Offline) - Cleared6 scenarios were given to conve...
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Round-1 DSA round (Online) - Cleared 2 easy-level coding questions based on array and string. Round-2 Machine Coding Round (Offline) - Cleared 6 scenarios were given to convert into SpringBoot code based on the Car Rental System. (1-hour main jitna ho sake) Pehle se hi kuch classes and unme fields bana ke diye the. Car - name, type, registrationNo, costPerHour Renter - name, drivingLicenseNo, address, DatePeriod class that has two things start date and end date Criteria - ye khud se sochna tha kya filters laga sakta user DatePeriod - start date, end date DatePeriodUtil - isme do methods banakar diye the isInPeriod(LocalDate date1, DatePeriod date2) check karne ke liye rented car ka rental period chalra hai ya khtm hogya areOverlapping(DatePeriod date1, DatePeriod date2) check karne ke liye ki car rent ki dates overlap toh nahi hori (ache se smjh ni aaya mereko iska kaisa use karna) Method signature banake bhi diya tha kuch ka unko implement karna tha hme. rentCar(Car car, Renter renter) {} addCar(Car car){} returnCar(Car car, Renter renter){} getAllCar(Criteria criteria){} Har scenario ka kuch acceptance criteria tha jo meet karna tha. 2-4 scenario karne par round clear ho jara tha. Round-3 Technical Round (Offline) -
Rejected Q1. Find third highest salary in below array list using Java8 streams ? class Employee { int id; String name; int age; String gender; int yearOfJoining; double salary; } Q2. Given an array of cities = {"Agra", "Noida", "Agra", "Delhi", "Agra"} The task is to find the most occurring word in arr using Java8 streams. Q3. Map vs FlatMap? Q4. Atomic vs Volatile in Java? When to use which one ? Q5. Your favouite features in Java. Name them.
About This Question
This is a reported interview question from a rbs interview for a swe role during the technical round reported in 2023.
It covers the following topics: Arrays, Strings .
Difficulty rating: Easy
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About Rbs Interview Reports
This question was reported by a candidate who interviewed at Rbs. LeakCode aggregates interview reports from 10+ sources, including 1Point3Acres, Glassdoor, LeetCode Discuss, Blind, Reddit, Indeed, and Nowcoder. Each report is translated where necessary, deduplicated against existing entries, and tagged by company, role, round type, and reporting date.
Use this question as one calibration data point, not a memorization target. Companies typically rotate their question pools every 2-4 months; the exact wording of a 2024 question may differ from what you encounter today. The underlying pattern, difficulty level, and follow-up depth at Rbs are the higher-signal extractions to take from this report.
For broader preparation context, the Rbs interview process typically includes a recruiter screen, one or two technical phone screens, and a 4-5 round on-site loop covering coding, system design (at L4+ levels), and behavioral. Reports tagged on LeakCode show the round-by-round distribution and typical difficulty calibration. To browse questions filtered by round type and seniority, use the company hub linked above.
How To Practice This Type of Question
Solve similar problems on LeetCode under timed conditions (25-35 minutes per medium difficulty). The goal is pattern recognition: recognize the underlying technique (sliding window, two-pointer, BFS, memoized recursion, etc.) within 60-90 seconds of reading. Strong candidates verbalize their hypothesis out loud before coding, then iterate based on feedback. Weak candidates dive into implementation immediately, lose time on the wrong approach, and run out of time for follow-ups.
Companies update their question pools every 2-4 months. The exact wording of any given question may have been retired by the time you interview. Focus your prep on the pattern, not the specific problem. The patterns that appear in Rbs reports consistently are the ones worth investing in; one-off niche problems are not.
During Your Rbs Round
Apply the standard interview round template: clarify requirements (2-3 minutes), state your approach out loud and confirm direction with the interviewer (3-5 minutes), code with narration (15-25 minutes), test with concrete examples including edge cases (5 minutes), discuss optimization or trade-offs if time permits (5 minutes). This template is universally accepted across FAANG and adjacent companies; deviating from it produces weaker interviewer feedback signal.
The single most predictive failure mode in Rbs reports tagged "no hire": not asking clarifying questions. Interviewers are explicitly trained to weight this. Strong candidates ask 3-5 clarifying questions even on problems that look obvious; weak candidates dive into code immediately. The clarifying-question check is often the first signal recorded in the interviewer's written notes.