Mar 26, 2025 · The Java SE 21 release introduces pattern matching for switch expressions and statements as a permanent feature. Pattern matching provides us more flexibility when defining conditions for switch selector expressions and cases. We can use patterns (e.g., Integer i, String s) in case labels.

Like all expressions, switch expressions evaluate to a single value and can be used in statements. They may contain "case L ->" labels that eliminate the need for break statements to prevent fall through. You can use a yield statement to specify the value of a switch expression.

Dec 24, 2021 · Switch statement in java has gone through a rapid evolution since Java 7 . So in this article we will discuss evolution or changes of switch statement from java 7 to java 17 with...

Jul 31, 2023 · Discover the power and elegance of Java 17's switch expressions: their syntax, usage, benefits, and how they revolutionize traditional Java programming.

A switch statement transfers control to one of several statements or expressions, depending on the value of its selector expression. In earlier releases, the selector expression must evaluate to a number, string or enum constant, and case labels must be constants.

Dec 28, 2021 · Java 17 has come up with some cool features for the language, one of which is switch expressions. Maybe someone wonders, – But, does the switch already exists in Java? and the answer is yes, as a statement that only evaluates a data but does not return a value.

Nov 19, 2023 · Java 17 introduces noteworthy changes to the traditional switch statement, enhancing its functionality and making code more expressive. These changes aim to simplify the syntax, improve...

Dec 22, 2024 · Now, Java 17 introduces a powerful combination of sealed classes and pattern matching in switch statements, revolutionizing how you handle type-based logic in your code. This feature enables you to write more concise and type-safe …

Feb 7, 2025 · Java 17 introduced pattern matching and switch expressions, allowing for more concise and flexible code. One of the key changes is the ability to use switch as an expression, returning values directly. This avoids multiple case blocks with redundant break statements and reduces potential for errors. public static void main(String[] args) {

Sep 28, 2021 · In Java 17 (released only a few days ago), Pattern Matching for switch has been introduced as a preview language feature, which allows case labels with patterns rather than just constants. Here is an example showing how you can match on type patterns: case String s -> "I am a String. My value is " + s; case Integer i -> "I am an int.