?
Solved

non-final variable inside an inner class

Posted on 2002-07-25
3
Medium Priority
?
2,003 Views
Last Modified: 2007-11-27
I get this error:
Cannot refer to non-final variable someParameter
inside an inner class defined in a different method

with this code:

<instantiate a button>
int someParameter = 1;
someButton.addSelectionListener(new SelectionAdapter()
{
public void widgetSelected (SelectionEvent event)
{
  someMethod(someParameter);
}
});

What are the different ways i can get around this?
0
Comment
Question by:jdaues
3 Comments
 
LVL 86

Expert Comment

by:CEHJ
ID: 7177807
The simplest way is to declare:

final int someParameter = 1;
0
 

Author Comment

by:jdaues
ID: 7177930
well, yes, except that the point of having the parameter is that later in the code I will have

<instantiate button2>
someParameter = 2;
someButton2.addSelectionListener(new SelectionAdapter()
{
public void widgetSelected (SelectionEvent event)
{
 someMethod(someParameter);
}
});
0
 
LVL 4

Accepted Solution

by:
kylar earned 400 total points
ID: 7178050
If it's defined at the class level instead of method level you can pass it as well.

Cheers,
K
0

Featured Post

Vote for the Most Valuable Expert

It’s time to recognize experts that go above and beyond with helpful solutions and engagement on site. Choose from the top experts in the Hall of Fame or on the right rail of your favorite topic page. Look for the blue “Nominate” button on their profile to vote.

Question has a verified solution.

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

This was posted to the Netbeans forum a Feb, 2010 and I also sent it to Verisign. Who didn't help much in my struggles to get my application signed. ------------------------- Start The idea here is to target your cell phones with the correct…
Are you developing a Java application and want to create Excel Spreadsheets? You have come to the right place, this article will describe how you can create Excel Spreadsheets from a Java Application. For the purposes of this article, I will be u…
Viewers learn about the “for” loop and how it works in Java. By comparing it to the while loop learned before, viewers can make the transition easily. You will learn about the formatting of the for loop as we write a program that prints even numbers…
Viewers will learn about the regular for loop in Java and how to use it. Definition: Break the for loop down into 3 parts: Syntax when using for loops: Example using a for loop:
Suggested Courses
Course of the Month14 days, 19 hours left to enroll

840 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