How do I approach Software Engineering Fundamentals interview questions?

Software Engineering Fundamentals questions require understanding of core concepts and practice. PracHub provides solutions with explanations to help you master software engineering fundamentals interviews.

What difficulty level is this interview question?

This is a medium difficulty Software Engineering Fundamentals question, commonly asked during Technical Screen rounds at WeRide.

What role is this question designed for?

This question is commonly asked for Software Engineer candidates at WeRide during technical interviews.

Explain Java concurrency and fix i++ race

Last updated: Mar 29, 2026

Quick Overview

This question evaluates understanding of Java concurrency constructs (Thread/Runnable/Callable), the Java Memory Model, synchronization primitives (volatile, synchronized, Lock, Atomic classes), and the ability to reason about atomicity and race conditions such as lost updates from i++.

WeRide

Oct 2, 2025, 12:00 AM

Software Engineer

Technical Screen

Software Engineering Fundamentals

1

0

Java

Java

ThreadRunnable/Callable
Java Memory Model
volatile``synchronized``Lock Atomic*

i++ “/lost update”
- i++

JDK

Solution

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