Array Shortcut Notation as a Method Parameter

[Corey McGlone]

This works:

String[] args = {"server_name=server","db_name=dbname","dictionary_table_name=dd"};
generator.setParameters(args);

...as does this:

generator.setParameters(new String[] {"server_name=server","db_name=dbname","dictionary_table_name=dd"});

This does not:

generator.setParameters({"server_name=server","db_name=dbname","dictionary_table_name=dd"});

The latter gives me a compiler exception stating that the method setParameters(String[]) is not applicable for the arguments (String, String, String).

Any ideas as to why the shortcut syntax is not allowed when used as a parameter to a method?

On a side note, I've gotten around the issue by changing the signature of generator.setParameters to be:

generator.setParameters(String... args)

That allows me to do this:

generator.setParameters("server_name=server","db_name=dbname","dictionary_table_name=dd");

I'm just curious why the notation above doesn't work in that scenario. Thanks.

[Ram Narayan.M]

generator.setParameters({"server_name=server","db_name=dbname","dictionary_table_name=dd"});

This type of pattern is legal only during the initialization of Objects...

[Paul Clapham]

Ram Narayan.M wrote:This type of pattern is legal only during the initialization of Objects...

That's right; for something even more surprising try this:

String[] args;
args = {"server_name=server","db_name=dbname","dictionary_table_name=dd"};

You'll find that doesn't compile because the second line doesn't initialize anything.