Payment model, permits and the three modifiers, default-branch trap, generic and recursive hierarchies, visitor comparison, run-time enforcement, modules. Transcripts from JDK 21, 25 and 27. Co-Authored-By: Claude Sonnet 5 <[email protected]> Claude-Session: https://claude.ai/code/session_01TF9JWFvJSNm6HVzswzZU5a
11 lines
332 B
Java
11 lines
332 B
Java
package pay.app;
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import pay.api.Payment;
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import pay.impl.*;
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public class Main {
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public static void main(String[] args) {
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Payment p = new Card(100);
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String s = switch (p) { case Card c -> "card"; case Upi u -> "upi"; };
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System.out.println(s + " in module " + Payment.class.getModule().getName());
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}
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}
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