Kotlin for Java Developers

Short answer: yes — if Kotlin is on your roadmap. The regular Udemy price for Kotlin for Java Developers is $159.99. With the coupon on this page it drops to $9.99 — you save $150.00 (94% off). Spread across 16 hours 30 minutes of on-demand video, that is roughly $0.01 per hour of content — cheaper than a single chapter of most textbooks. The course holds a 4.5/5 rating from 35,023 students, which is a strong signal for an evergreen topic like Kotlin.

Curriculum focus: create kotlin programs • understand the differences between java and kotlin • understand how java and kotlin programs interoperate. Led by Tim Buchalka, Goran Lochert, Tim Buchalka's Learn Programming Academy, the teaching approach is practical and project-based, matching how Udemy's top courses are structured. and the primary language is English — check the “Course details” table above for the full spec. Requirements are light: Ideally, have at least a basic knowledge of Java (not essential).

Who should claim it: beginners exploring Kotlin who want lifetime access + certificate for LinkedIn, and intermediate learners who need a cheap refresher with 16 hours 30 minutes video + downloadable resources. Who can skip: if you already completed a highly-rated Kotlin course recently, or you need an advanced specialization that this All Levels course does not cover — compare with the alternatives below before enrolling.

Context right now in Programming Languages: CoursesWyn tracks 29 active coupons in this category, 26 of them are 90%+ off with an average price of $11.23 — so this 94% off deal sits right at the top tier for value. Coupon window is listed until July 6, 2026 or until the redemption cap is hit — whichever comes first. You get lifetime access, mobile & TV playback, and a Udemy certificate on completion — identical to a full-price enrollment. Price history above (tracked since February 20, 2025) shows this is one of the deeper discounts we have recorded for this course.