Re: Code question

From:

Lew <noone@lewscanon.com>

Newsgroups:

comp.lang.java.programmer

Date:

Thu, 21 Oct 2010 07:12:27 -0400

Message-ID:

<i9p750$n7p$2@news.albasani.net>

On 10/21/2010 04:14 AM, Tom Anderson wrote:

On Wed, 20 Oct 2010, Lew wrote:

mike wrote:

    private static Class[] aArgs= new Class[2];
    private static Class[] fArgs= new Class[2];
    static {
        aArgs[0] = Base.class;
        aArgs[1] = Director.class;
        fArgs[0] = Source.class;
        fArgs[1] = Divirter.class;
    }
Is it not better to write:
private static Class[] aArgs= new Class[]
{ Base.class,Director.class};
private static Class[] fArgs= new Class[]
{ Source.class,Divirter.class};

We have skipped over the likely difficulties involved in mixing
generic types with arrays, something one should avoid or else
carefully manage in Java programming.

By which Lew means you should consider:

private static List<Class<?>> aArgs = Arrays.asList(Base.class,
Director.class);
private static List<Class<?>> fArgs = Arrays.asList(Source.class,
Divirter.class);

or Class <?> []

However, i would guess that those constants are destined for use like this:

Class c;
Method a = c.getMethod("a", aArgs);

In which case using lists would be the wrong choice.

--
Lew