switch-case is more expressive in Java 12 & above

One of the features that I am really excited about is pattern matching in Java. Pattern matching is a powerful feature in languages like Scala and Kotlin. You have an input token that’s matched against patterns.
switch-case statement comes close, yet very far, to pattern matching in Java. But starting Java 12 you’ve switch-case available as expressions and not statements, that enables us harness the power of pattern matching.

Here’s an example of using switch-case statement before Java 12.

Before

public class PatternMatching  {
	public static void main(String[] args) {
		int number = 12;
		int mod = number % 2;
		String result = null;
		switch(mod) {
			case 1:
				result = "Odd";
				break;
			case 0:
				result = "Even";
				break;
			default:
				result = "Huh";
		};
		System.out.println(result);
	}
}

And an example that uses switch-case expressions in Java 12.

After

public class PatternMatching  {
	public static void main(String[] args) {
		int number = 12;
		int mod = number % 2;
		
		String result = switch(mod) {
			case 0 -> "Even";
			case 1 -> "Odd";
			default -> "Huh";
		};
		System.out.println(result);
	}
}

You can compile& run PatternMatching.java by enabling preview mode like this.
javac --enable-preview --release 12 PatternMatching.java
java --enable-preview PatternMatching

You can watch the video here.