Solved

Class call and invoke

Posted on 2011-03-01
5
253 Views
Last Modified: 2012-05-11
I need to use for the same class two different communication ways:
1. I need to call it from toggle button
Abc abc = new Abc();
abc.method1();
2. At the same time this class Abc created
private static Abc abc = new Abc();
public static Abc getInstance() {
return instance;
}
I have to use 1 way in jToggleButton to change boolean value , I try to do it with invoking instance, but it doesn't work.
Please advice.
0
Comment
Question by:gbcbr
  • 2
  • 2
5 Comments
 
LVL 47

Expert Comment

by:for_yan
ID: 35008145
If it has public constructor why would you use second way? If it does not have public constructor you cannot use it in the first way.
0
 
LVL 26

Assisted Solution

by:ksivananth
ksivananth earned 100 total points
ID: 35008159
you need to invoke the getInstance method in all the place instead of new ABC()!
0
 

Author Comment

by:gbcbr
ID: 35008638
>> If it has public constructor why would you use second way?
Please explain.
I use second way because this class DecisionCenter has to collect few boolean values from different classes and if all this values lay down into my puzzle correct it will allow deal.
0
 
LVL 47

Accepted Solution

by:
for_yan earned 400 total points
ID: 35008915
If you collect boolean or double values in DC why this has anything to do with the way you access your ABC class ? Please, explain it to yourself and to me in plain words.

As you can see in this discussion there are very few classes which have both public constructore and getInstance mechanism. Why do you want to be so special?  Do like everyone else - either  - or. It is always easier to be like the majority
http://www.velocityreviews.com/forums/t140755-constructor-or-getinstance-method.html
0
 

Author Closing Comment

by:gbcbr
ID: 35009046
Thank you for very good link to discussion
0

Featured Post

Courses: Start Training Online With Pros, Today

Brush up on the basics or master the advanced techniques required to earn essential industry certifications, with Courses. Enroll in a course and start learning today. Training topics range from Android App Dev to the Xen Virtualization Platform.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
eclipse package explorer vs project explorer view 2 121
Java Server Faces parameter pass? 6 48
Java exception bubble up 2 17
pagenation logic how it is working in my code 1 27
For customizing the look of your lightweight component and making it look opaque like it was made of plastic.  This tip assumes your component to be of rectangular shape and completely opaque.   (CODE)
Go is an acronym of golang, is a programming language developed Google in 2007. Go is a new language that is mostly in the C family, with significant input from Pascal/Modula/Oberon family. Hence Go arisen as low-level language with fast compilation…
Viewers learn about the “while” loop and how to utilize it correctly in Java. Additionally, viewers begin exploring how to include conditional statements within a while loop and avoid an endless loop. Define While Loop: Basic Example: Explanatio…
This tutorial covers a practical example of lazy loading technique and early loading technique in a Singleton Design Pattern.

813 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

17 Experts available now in Live!

Get 1:1 Help Now