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| From | Knute Johnson <nospam@rabbitbrush.frazmtn.com> |
| Newsgroups | comp.lang.java.programmer |
| Subject | Re: A small quiz |
| Date | Thu, 1 Oct 2015 08:22:58 -0700 |
| Organization | A noiseless patient Spider |
| Lines | 23 |
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On 10/1/2015 05:02, Stefan Ram wrote: > A method m() is declared to have a return type of java.lang.String: > > java.lang.String m() > > . A programmer writes this expression: > > java.lang.String.valueOf( m() ) > > (The scope is so that »m« in the above expression refers to the > method »m()« as declared above.) > > . Can you find out what might be a good reason the programmer might > have to write this expression? Since the return type of m() already > /is/ java.lang.String, the call to »java.lang.String.valueOf« seems > to be completely superfluous! > If m() returns null String.valueOf would return "null". -- Knute Johnson
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Re: A small quiz Knute Johnson <nospam@rabbitbrush.frazmtn.com> - 2015-10-01 08:22 -0700 Re: A small quiz Arne Vajhøj <arne@vajhoej.dk> - 2015-10-02 22:16 -0400
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