Core Java - Design Patterns

This LearnKartS course examines recurring design problems after the Java basics. Examples such as factories, observers and interchangeable strategies provide a route into broader pattern families. The listed workload is about five hours.

What you will learn

• Recognize recurring problems addressed by design patterns.
• Compare creational, structural and behavioral approaches.
• Apply a suitable pattern to a small Java design.

Who this suits

Java learners with a solid understanding of classes, objects, inheritance and polymorphism.

Before you enroll

Those OOP foundations are explicit requirements. A pattern should solve a real design problem; compare the added complexity with a straightforward implementation.

Coursera offers paid enrollment or subscription access. Check the enrollment screen for assessment and certificate terms, trials and any financial-aid options. Tool subscriptions, model API usage and cloud services may cost extra.

Put it into practice

Implement two notification strategies behind a common interface. Explain when the abstraction helps and show a simpler alternative for a system with only one notification type.

Source and review

This overview is based on the provider's published information, checked on 12 October 2026. It is an editorial assessment, not a claim that we completed the resource. Time filters are approximate study ranges; projects and exercises can take longer.

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