Re: "Hello world!" without a public class?

From:
"Aryeh M. Friedman" <Aryeh.Friedman@gmail.com>
Newsgroups:
comp.lang.java.programmer
Date:
Sun, 6 Jan 2013 10:48:08 -0800 (PST)
Message-ID:
<919a1e82-bb3d-409b-a3c6-a6fe8e09b1c5@googlegroups.com>
On inner classes:

First of all anytime I see more then one class in a .java file I tend to lu=
mp them together (i.e. make no distinction between nested and inner). Now =
that being said here is a good example of something that is easier to read =
then either (yes it does get compiled into something very close to inner cl=
asses [not nested if I remember the jargon correctly] but no where near as =
ugly):

Foo.java:

public enum Foo
{
    ACK {
       public void doSomething(SomeClass arg)
       {
          do what ever for ACK
       }
    },
    BAR {
       public void doSomething(SomeClass arg)
       {
         do what ever for BAR
       }
    }
}

Fred.java:

public class Fred
{
     public void someMethod()
     {
        SomeClass sc=new SomeClass(...);
        Foo[] arr=new Foo[]{ACK,BAR}; // typing this for this example so=
 being lazy on syntax

        for(Foo elem:arr)
            elem.doSomething(sc);
     }
}

and voila much more readable then putting a whole rats nest of stuff in the=
 initialization of arr
     }
}

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