Claude
bc91b9c8d0
Type, record and primitive patterns, guards, sealed exhaustiveness, MatchException via separate compilation, and eight captured transcripts. Co-Authored-By: Claude Sonnet 5 <[email protected]> Claude-Session: https://claude.ai/code/session_01TF9JWFvJSNm6HVzswzZU5a
15 lines
481 B
Java
15 lines
481 B
Java
public class Client {
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// Compiled against Shape v1, where the only permitted subtypes are Circle and Square.
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public static double area(Shape s) {
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return switch (s) {
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case Circle c -> Math.PI * c.r() * c.r();
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case Square q -> q.side() * q.side();
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};
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}
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public static void main(String[] args) {
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System.out.println("circle: " + area(new Circle(1)));
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System.out.println("square: " + area(new Square(2)));
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}
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}
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