console.txt

[tmp] java -version
openjdk version "13-ea" 2019-09-17
OpenJDK Runtime Environment (build 13-ea+32)
OpenJDK 64-Bit Server VM (build 13-ea+32, mixed mode, sharing)
[tmp] java --enable-preview --source 13 Switch.java Foo
Note: Switch.java uses preview language features.
Note: Recompile with -Xlint:preview for details.
The quick brown fox
jumps over the lazy dog
1
[tmp] java --enable-preview --source 13 Switch.java Bar
Note: Switch.java uses preview language features.
Note: Recompile with -Xlint:preview for details.
The quick brown fox
jumps over the lazy dog
2
[tmp] java --enable-preview --source 13 Switch.java Other
Note: Switch.java uses preview language features.
Note: Recompile with -Xlint:preview for details.
The quick brown fox
jumps over the lazy dog
0
[tmp] java --enable-preview --source 13 Switch.java 1223
Note: Switch.java uses preview language features.
Note: Recompile with -Xlint:preview for details.
The quick brown fox
jumps over the lazy dog
0

Switch.java

public class Switch {
	public static void main(String... args) {
		var s = args[0];
		int result = switch (s) {
			case "Foo" -> 1;
			case "Bar" -> 2;
				default -> 0;
		};
		String msg2 = """
The quick brown fox\040\040
jumps over the lazy dog
""";
		System.out.println(msg2 + result);
	}
}