Solved

how to identifiy JTextField object at runtime, since the reference name is not stored at class file?

Posted on 2007-03-18
5
267 Views
Last Modified: 2007-03-18
hello experts,

understand that for below code:
  JTextField field1 = new JTextField();

field1 will not be stored inside the class file, but only at source code file.

Then how could I identify this object at runtime? In other words, is there any way to give id to "field1" object that can be read at runtime by other codes  (since the reference name "field1", will not be stored at runtime)

Or should I override JTextField into a new class and create a new attributes for id? Is there any for the existing JTextField?

Thanks & regards.
0
Comment
Question by:isuhendro
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
5 Comments
 

Author Comment

by:isuhendro
ID: 18743341
btw to clarify..
for example

at class A i have code like below:

JPanel myPanel = new JPanel();
JTextField field1  = new JTextField();
JTextField field2  = new JTextField();

myPanel.add(field1);
myPanel.add(field2);

my question is related to an inner class, named class B, inside class A.
Inside class B, I am trying to write code which will return a collection whose members are a pair of fieldname and its value, e.g ("field1", "valueoffield1"), ("field2", "valueoffield2").
The problem is as i told you, i could not get the id "field1", "field2", etc
0
 
LVL 86

Expert Comment

by:CEHJ
ID: 18744098
You could call getComponents on the nearest Container to the JTextField(s) to which you want to get a reference
0
 
LVL 30

Expert Comment

by:Mayank S
ID: 18744536
You can expose it as a member of the class A:

public JTextField getFirstTextField ()
{
  return field1 ;

}

You can either expose all of them this way (using multiple get methods) to be accessible from outside or create them in an array and expose the array in one method.
0
 
LVL 92

Accepted Solution

by:
objects earned 125 total points
ID: 18745049
0
 
LVL 92

Expert Comment

by:objects
ID: 18745053
eg.  field.setName("field1");
0

Featured Post

Secure Your Active Directory - April 20, 2017

Active Directory plays a critical role in your company’s IT infrastructure and keeping it secure in today’s hacker-infested world is a must.
Microsoft published 300+ pages of guidance, but who has the time, money, and resources to implement? Register now to find an easier way.

Question has a verified solution.

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

Suggested Solutions

Title # Comments Views Activity
pagenation logic how it is working in my code 1 71
Problem to Alipay 10 71
glassfish admin console 1 22
Java array sort 10 34
Java had always been an easily readable and understandable language.  Some relatively recent changes in the language seem to be changing this pretty fast, and anyone that had not seen any Java code for the last 5 years will possibly have issues unde…
Introduction This article is the last of three articles that explain why and how the Experts Exchange QA Team does test automation for our web site. This article covers our test design approach and then goes through a simple test case example, how …
Viewers will learn one way to get user input in Java. Introduce the Scanner object: Declare the variable that stores the user input: An example prompting the user for input: Methods you need to invoke in order to properly get  user input:
This theoretical tutorial explains exceptions, reasons for exceptions, different categories of exception and exception hierarchy.

733 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