Java: “Anonymous” array in for-each-loop

Question

While I was trying something special in for loop I recognized that Java doesn\'t seem to like putting an anonymous array right as the source for a for-each-loop:

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Answer 1

The Java language provides the {"a","b","c"} form as a shortcut, but it is only possible during assignment. It's possible this is to avoid possible ambiguities during parsing, in some positions {} could be interpreted as a code block.

The right way to do it would be how noah suggests, with new String[]{"a","b","c"}.

Answer 2

You want

for (String crt : new String [] {"a","b","c"} ) {
    doSomething();
}

I use IntelliJ and it says put the message "expression expected" on the right-hand side of the colon in the for-loop, which seems more accurate.

I should add that IntelliJ also offers to add the "new String []" automagically for me.

Answer 3

This will work:

for (String crt : new String[]{"a","b","c"} ) {
    doSomething();
}

Answer 4

Dunno, what about this? :) Pity there's no succinct version. Suppose you could use Groovy or Scala if you wanted anything like that :)

for (String s : Arrays.asList("a","b","c")) {
    hmm(s);
}