java's flow of control

[cat5ive]

Hi,

I'm trying to learn java and I don't understand the flow here? When will the statement in red get excecuted?
Thanks in advance.

public class Registration                               
{   [COLOR=red]
                                                    
    private AttendeeList attendeeList = new AttendeeList
      [/color]
                                                  
    public void run()                                   
    {          
        //do something
     }

     public static void main()
     {   
         System.out.println("Welcome to class Regist.");
         Registration register = new Registration();
         register.run();
                                     
     }
}

 

[stefanwagner]

never.
due to missing semicolon.
else:
when 'new Registration ()' is called.

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[Diancecht]

When an object gets instantiated, that is, new Registration(), all its internal variables are also initialized.

If you have

private AttendeeList attendeeList = null;

will be initialized to a null value. In your case, a new object will be constructed.

Cheers,

Dian

 

[jstreich]

public class Registration                               
{   
                                                    
    private AttendeeList attendeeList = new AttendeeList[red];

  public Registration()
  {
     //statment here comes AFTER the initalization in question
  }

[/red]
      
                                                  
    public void run()                                   
    {          
        //do something
     }

     public static void main()
     {   
         System.out.println("Welcome to class Regist.");
         Registration register = [green]new Registration()[/green];
         register.run();
                                     
     }
}

Red code I added, green is When it happens. The stuff in the constructor (if a constructor is present) happens after the in line init stuff.

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