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Last change
on this file was
13186,
checked in by Mark Evenson, 13 years ago
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Add a slightly simpler example of implemeting a Java interface in Lisp.
TODO Needs further documentation.
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File size:
900 bytes
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| 1 | import org.armedbear.lisp.Interpreter; |
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| 2 | import org.armedbear.lisp.Symbol; |
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| 3 | import org.armedbear.lisp.Packages; |
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| 4 | import org.armedbear.lisp.JavaObject; |
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| 5 | import org.armedbear.lisp.LispObject; |
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| 6 | |
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| 7 | public class BankExampleMain |
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| 8 | { |
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| 9 | static public void main(String argv[]) { |
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| 10 | Interpreter interpreter = Interpreter.createInstance(); |
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| 11 | interpreter.eval("(load \"bank-account.lisp\")"); |
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| 12 | org.armedbear.lisp.Package defaultPackage |
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| 13 | = Packages.findPackage("CL-USER"); |
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| 14 | Symbol bankAccountImplSymbol |
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| 15 | = defaultPackage.findAccessibleSymbol("*BANK-ACCOUNT-IMPL*"); |
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| 16 | LispObject value = bankAccountImplSymbol.symbolValue(); |
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| 17 | Object object = ((JavaObject) value).getObject(); |
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| 18 | BankAccount account = (BankAccount) object; |
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| 19 | System.out.println("Initial balance: " + account.getBalance()); |
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| 20 | account.withdraw(500); |
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| 21 | System.out.println("After withdrawing 500: " + account.getBalance()); |
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| 22 | } |
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| 23 | } |
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