Re: Method syntax question

["Dave Wall" <dawall@xxxxxxxxxx>]

The programmer is simply combining multiple lines of Java code into a
single statement.  This doesn't introduce additional relationships.  It
does reduce the amount of typing an may slightly increase efficiency.
Interim (short lived) objects are still created but they aren't assigned to
variable names so the compiler/JVM may be able to do additional
optimization.

To be specific,
     getlbDate().setText(String.valueOf(new java.util.Date()));

Is the same as:
     java.util.Date  date   = new Java.util.Date();
     String          string = String.valueOf(date);      // note valueOf on
String is a static method
      Object          someObject = xxx.getlbDate();       // from your line
of code I don't know
                                                          //   what kind of
object is returned by
                                                          //   getlbDate()
      someObject.setText(string);

When looking at a line of code like yours it helps to look at it a piece at
a time.
     1. What does object does getlbDate return?
     2. What type does method "setText" on this object require?
     3. How do I get an object of this type?


David Wall
AS/400 Toolbox for Java


"Tom Tufankjian" <Tom_Tufankjian@hbltd.com>@midrange.com on 06/01/2001
07:58:47 AM

Please respond to JAVA400-L@midrange.com

Sent by:  owner-java400-l@midrange.com


To:   JAVA400-L@midrange.com
cc:
Subject:  Method syntax question


I am learning Java and came across the following in a Java bean:

getlbDate().setText(String.valueOf(new java.util.Date()));

What does it mean when you have a method, a dot, and another method?  How
are the two methods related?


Thanks so much for your help!


Tom T.


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