Skip to main content
Homejava

Course

Input/Output and Streams in Java

IntermediateSkill Level
4.8+
320 reviews
Updated 11/2025
Advance your Java skills by learning to handle files, process data, and build clean, reusable code using real-world techniques.
Start Course for Free
JavaProgramming
4 hr
12 videos
34 Exercises
2,800 XP
2,069
Statement of Accomplishment

Create Your Free Account

or

By continuing, you accept our Terms of Use, our Privacy Policy and that your data is stored in the USA.

Loved by learners at thousands of companies

Group

Training a Team?

Try for Business

Course Description

Build real-world Java skills by working hands-on with file management, data collections, and custom methods. This course helps you move beyond the basics to write cleaner, more efficient, and maintainable Java code.

Work with Files and Directories in Java

Start by learning how to create, delete, and check files. You’ll read and write text using file-handling tools and manage directories and file paths to organize data effectively.

Process and Transform Data with Java Collections

Next, explore how to handle collections of data in Java. You’ll safely loop through lists, modify elements, and use modern techniques to filter, transform, and summarize data using a functional approach.

Write Reusable Java Code with Methods, Dates, and Enums

Finally, you’ll build custom methods to solve common problems, work with dates and times, and use enums to represent fixed sets of values. You'll apply recursion and clean coding practices to write flexible, reusable Java programs.

What You’ll Achieve

By the end of the course, you’ll have the skills to manage files, process data collections, and create scalable, maintainable Java applications with confidence.

Prerequisites

Data Types and Exceptions in Java
1

Introduction to Input/Output Operations

Learn how to create, read, write, and delete files in Java. You’ll also explore how to work with folders and file paths to organize and manage data on your system.
Start Chapter
2

Iterators and Streams

Work with lists and collections in Java as you learn to safely navigate and update data. You'll also explore modern techniques for filtering, transforming, and summarizing information with clarity and efficiency.
Start Chapter
Input/Output and Streams in Java
Course
Complete

Earn Statement of Accomplishment

Add this credential to your LinkedIn profile, resume, or CV
Share it on social media and in your performance review
Enroll Now

Don’t just take our word for it

*4.8
from 320 reviews
85%
13%
2%
0%
0%
  • Anandanarayan
    6 hours ago

  • Siddharth
    6 hours ago

  • Tharak
    7 hours ago

    nice

  • Tejas
    8 hours ago

  • Varun
    8 hours ago

  • Neyver Gonzalo
    15 hours ago

Anandanarayan

Siddharth

"nice"

Tharak

FAQs

What Java topics does this course cover beyond basic programming?

You learn file input and output operations, working with iterators and streams for collections, and building custom methods with dates, times, and enums for cleaner, reusable code.

What Java courses should I complete before this one?

You need Introduction to Java, Intermediate Java, Introduction to Object-Oriented Programming in Java, and Data Types and Exceptions in Java as prerequisites.

Will I learn to read and write files in Java?

Yes. Chapter 1 teaches you to create, read, write, and delete files, plus work with folders and file paths to organize data on your system.

What are Java streams and how are they used in this course?

Java streams provide modern techniques for filtering, transforming, and summarizing data in collections. Chapter 2 teaches you to use them alongside iterators for efficient data processing.

How long does this course typically take to complete?

The course has 3 chapters with 34 exercises. Most learners complete it in about 1.4 hours, though the estimated total learning time is 4 hours.

Join over 19 million learners and start Input/Output and Streams in Java today!

Create Your Free Account

or

By continuing, you accept our Terms of Use, our Privacy Policy and that your data is stored in the USA.

Grow your data skills with DataCamp for Mobile

Make progress on the go with our mobile courses and daily 5-minute coding challenges.