Software Engineering

723 learners

Java Streams Mastery

This course will guide you through the powerful Stream API in Java. You'll learn how to process data with streams, perform intermediate and terminal operations, and effectively manipulate collections of data.

Java

See path

6 lessons

31 practices

4 hours

Course details

Getting Started with the Stream API

Preview

Streams in Action

Using the count Method

Using findAny and findFirst

Fix Stream Reuse Bug

Stream with Countries

Previous Course Next Course: Advanced Functional Programming Techniques

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Francisco Aguilar Meléndez

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+11

I love that it's personalized. When I'm stuck, I don't have to hope my Google searches come out successful. The AI mentor Cosmo knows exactly what I need.

Faith Yim

Software Engineer

+14

It's an amazing product and exceeded my expectations, helping me prepare for my job interviews. Hands-on learning requires you to actually know what you are doing.

Alex Bush

Full Stack Engineer

I'm really impressed by the AI tutor Cosmo's feedback about my code. It's honestly kind of insane to me that it's so targeted and specific.

Abbey Helterbran

Tech consultant

I tried Leetcode but it was too disorganized. CodeSignal covers all the topics I'm interested in and is way more structured.

Jonathan Miller

Senior Machine Learning Engineer

+12

I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!

Francisco Aguilar Meléndez

Data Scientist

+11

From our community

Hear what our customers have to say about CodeSignal Learn

I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!

Francisco Aguilar Meléndez

Data Scientist

+11

I love that it's personalized. When I'm stuck, I don't have to hope my Google searches come out successful. The AI mentor Cosmo knows exactly what I need.

Faith Yim

Software Engineer

+14

It's an amazing product and exceeded my expectations, helping me prepare for my job interviews. Hands-on learning requires you to actually know what you are doing.

Alex Bush

Full Stack Engineer

I'm really impressed by the AI tutor Cosmo's feedback about my code. It's honestly kind of insane to me that it's so targeted and specific.

Abbey Helterbran

Tech consultant

I tried Leetcode but it was too disorganized. CodeSignal covers all the topics I'm interested in and is way more structured.

Jonathan Miller

Senior Machine Learning Engineer

+12

I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!

Francisco Aguilar Meléndez

Data Scientist

+11

Java Streams Mastery

Course details

Unit 15 practices38 min

Unit 25 practices38 min

Unit 35 practices38 min

Unit 45 practices38 min

Unit 55 practices38 min

Unit 66 practices44 min

Turn screen time into skills time

Join the 1M+ learners on CodeSignal

From our community

From our community