Re: Stranger compiler error?
Knute Johnson wrote:
Patricia Shanahan wrote:
Knute Johnson wrote:
...
for (Enumeration<Integer> e=hash.keys(); e.hasMoreElements();)
String[] array = hash.get(e.nextElement()); // <---- error
...
You are confusing two very different entities, a statement and a
variable declaration.
The for MUST be followed by a statement.
You have a local variable declaration, which is not itself a statement
but can appear in a compound statement, such as a brace-enclosed block.
I understand the issue here I just can't find in the JLS where it is not
a statement. In fact, JLS 14.4.4 Execution of Local Variable
Declarations "A local variable declaration statement is an executable
statement.", would seem to say otherwise.
ASCII does not work well for some of this, because it lacks distinct
fonts. Also I should have capitalized "Statement". I meant the syntax
element "Statement", not the English word "statement".
Section 14.5 Statements lists all the productions for the syntax element
Statement. It does not include the syntax element
LocalVariableDeclarationStatement.
The production:
IfThenStatement:
if ( Expression ) Statement
definitely requires a syntax element Statement.
Patricia