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Groups > comp.lang.java.programmer > #32767
| From | Arne Vajhøj <arne@vajhoej.dk> |
|---|---|
| Newsgroups | comp.lang.java.programmer |
| Subject | Re: A small quiz |
| Date | 2015-10-02 22:16 -0400 |
| Organization | Aioe.org NNTP Server |
| Message-ID | <mundq2$em4$1@speranza.aioe.org> (permalink) |
| References | <quiz-20151001125558@ram.dialup.fu-berlin.de> <mujj0q$ttk$1@dont-email.me> |
On 10/1/2015 11:22 AM, Knute Johnson wrote: > 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". Not sure that I would call that a good reason. Arne
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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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