Groups > comp.lang.java.programmer > #39069

Re: getFibonacciArray() cannot call getFibonacciArray(int from)

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From	Cecil Westerhof <Cecil@decebal.nl>
Newsgroups	comp.lang.java.programmer
Subject	Re: getFibonacciArray() cannot call getFibonacciArray(int from)
Date	Sat, 03 Aug 2019 11:26:18 +0200
Organization	Decebal Computing
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Daniele Futtorovic <da.futt.news@laposte-dot-net.invalid> writes:

> On 2019-07-31 11:52, Cecil Westerhof wrote:
> If I had to hazard a guess, I would say that in jshell, you can't
> reference a method before you've declared it (lexically speaking).

No, that is not the problem. A method cannot call an overridden
version of itself in jshell, while it can in a class. :'-(

I have the following in test.jsh:
    void greeter() {
        printGreeting("Hello world.");
    }

    void printGreeting(String msg) {
        println(msg);
    }

    int getInt(int value) {
        return value;
    }

    int getInt() {
        return getInt(12);
    }

When I open this with '/open', I get:
    |  Error:
    |  method getInt in class  cannot be applied to given types;
    |    required: no arguments
    |    found: int
    |    reason: actual and formal argument lists differ in length
    |      return getInt(12);
    |             ^----^

So greeter does not have any problem with printGreeting not being
defined.

Another strange thing: getInt() is defined. But when I call it, I get
(as expected):
    |  Error:
    |  method getInt in class  cannot be applied to given types;
    |    required: no arguments
    |    found: int
    |    reason: actual and formal argument lists differ in length
    |      return getInt(12);
    |             ^----^

-- 
Cecil Westerhof
Senior Software Engineer
LinkedIn: http://www.linkedin.com/in/cecilwesterhof

Thread

getFibonacciArray() cannot call getFibonacciArray(int from) Cecil Westerhof <Cecil@decebal.nl> - 2019-07-31 11:52 +0200
  Re: getFibonacciArray() cannot call getFibonacciArray(int from) Daniele Futtorovic <da.futt.news@laposte-dot-net.invalid> - 2019-08-01 19:15 +0200
    Re: getFibonacciArray() cannot call getFibonacciArray(int from) Andreas Leitgeb <avl@logic.at> - 2019-08-02 06:51 +0000
    Re: getFibonacciArray() cannot call getFibonacciArray(int from) Cecil Westerhof <Cecil@decebal.nl> - 2019-08-03 11:26 +0200
  Re: getFibonacciArray() cannot call getFibonacciArray(int from) Cecil Westerhof <Cecil@decebal.nl> - 2019-08-03 11:11 +0200

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