Java: Switch Statements
41mAdvanced2024-02-07
Authors
Maaike van Putten
Trainer and Developer for Java, Python, Spring Boot, and More
Course details
Switch statements—which let you execute one statement from multiple conditions—are an extremely useful part of Java. However, switch changed drastically in Java 17 compared to Java 8 or 11. In this course. Instructor Maaike van Putten explains the benefits of the latest switch features. Maaike starts off with the basics of a switch statement and what you can do with it. She then introduces the syntax of the new options for switch statements and gives some use cases for them. She also explains switch expressions—what they are, how they differ from switch statements, and how to know when you use which one. Lastly, learn about pattern matching, a preview feature in Java 17 that provides more flexibility when defining conditions for switch cases.
Skills covered
JavaProgramming FoundationsAdvancedOracleProgramming LanguagesSoftware Development
Concepts
0. Introduction
- 01 - The easier way
1. Switch Statements
- 02 - Switch statement - What and why
- 03 - Switch syntax - Case and default
- 04 - Switch syntax - Allowed arguments
- 05 - Examples of real-world use cases
- 06 - Challenge - Writing a switch statement
- 07 - Solution - Writing a switch statement
2. Switch Expressions
- 08 - Switch expressions - What, why, and when
- 09 - New syntax required
- 10 - Working with return values
- 11 - Exhaustiveness
- 12 - Examples of real-world use cases
- 13 - Challenge - Writing a switch expression
- 14 - Solution - Writing a switch expression
3. Pattern Matching (Preview Feature)
- 15 - Pattern matching - What, why, preview
- 16 - Pattern matching with instanceof and null
- 17 - Guarded patterns
- 18 - Pattern label dominance
- 19 - Deconstruction patterns and record classes
- 20 - Examples of real-world use cases
- 21 - Challenge - Pattern matching for instanceof
- 22 - Solution - Pattern matching for instanceof
Conclusion
- 23 - Keep exploring