Java Basic Structures: Arrays, Strings, and Files
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Java Basic Structures: Arrays, Strings, and Files
This course is part of Programming in Java: A Hands-on Introduction Specialization
Instructors: Patrick Ester
5,833 already enrolled
Included with
What you'll learn
Store and manipulate arrays of data
Compare and manipulate strings of text
Read and write to text and CSV files
Skills you'll gain
Tools you'll learn
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There are 3 modules in this course
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This course is designed for learners with limited coding experience, providing a solid foundation of not just Java, but core Computer Science topics that can be transferred to other languages. The modules in this course cover arrays, strings, and files. Completion of Java Basics: Selection and Iteration before taking this course is recommended. To allow for a truly hands-on, self-paced learning experience, this course is video-free. Assignments contain short explanations with images and runnable code examples with suggested edits to explore code examples further, building a deeper understanding by doing. You'll benefit from instant feedback from a variety of assessment items along the way, gently progressing from quick understanding checks (multiple choice, fill in the blank, and un-scrambling code blocks) to small, approachable coding exercises that take minutes instead of hours.
Welcome to Week 1 of the Java Basic Structures: Arrays, Strings, and Files course. These assignments cover using arrays to store multiple pieces of data in a single variable and iterating over arrays or using built-in methods and functions to manipulate arrays. The module ends with a lab and graded coding exercises.
What's included
6 readings5 app items
6 readings•Total 14 minutes
- Navigating Codio Assignments•5 minutes
- Array Basics Lesson Notes (Optional Download)•1 minute
- ArrayLists Lesson Notes (Optional Download)•1 minute
- 2D Arrays Lesson Notes (Optional Download)•1 minute
- Arrays Lab (Review and Practice) Lesson Notes (Optional Download)•1 minute
- How to Reset an Assignment in Codio•5 minutes
5 app items•Total 150 minutes
- Codio: Arrays Coding Exercises•30 minutes
- Codio: Array Basics•30 minutes
- Codio: ArrayLists•30 minutes
- Codio: 2D Arrays•30 minutes
- Codio: Arrays Lab•30 minutes
Welcome to Week 2 of the Java Basic Structures: Arrays, Strings, and Files course. These assignments cover storing multiple characters or text in a string and using built-in methods and functions to manipulate strings. The module ends with a lab and graded coding exercises.
What's included
5 readings6 app items
5 readings•Total 5 minutes
- String Basics Lesson Notes (Optional Download)•1 minute
- String Methods Lesson Notes (Optional Download)•1 minute
- String Iteration Lesson Notes (Optional Download)•1 minute
- String Comparison Lesson Notes (Optional Download)•1 minute
- Strings Lab (Review and Practice) Lesson Notes (Optional Download)•1 minute
6 app items•Total 140 minutes
- Codio: Strings Coding Exercises•30 minutes
- Codio: String Basics•20 minutes
- Codio: String Methods•20 minutes
- Codio: String Iteration•20 minutes
- Codio: String Comparison•20 minutes
- Codio: Strings Lab•30 minutes
Welcome to Week 3 of the Java Basic Structures: Arrays, Strings, and Files course. These assignments cover importing and exporting large pieces of data from text and CSV files. The module ends with a lab and graded coding exercises.
What's included
4 readings5 app items
4 readings•Total 4 minutes
- Writing to a File Lesson Notes (Optional Download)•1 minute
- Reading a File Lesson Notes (Optional Download)•1 minute
- CSV Files Lesson Notes (Optional Download)•1 minute
- Files Lab (Review and Practice) Lesson Notes (Optional Download)•1 minute
5 app items•Total 120 minutes
- Codio: Files Coding Exercises•30 minutes
- Codio: Writing to a File•20 minutes
- Codio: Reading a File•20 minutes
- Codio: CSV Files•20 minutes
- Codio: Files Lab•30 minutes
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Reviewed on May 14, 2021
well Explained on files and strings and good practice with handson.
Reviewed on Dec 28, 2025
The course is very intuitive and quite the detailed, loved it!
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