Solved

ArrayList change object position

Posted on 2007-11-25
2
1,435 Views
Last Modified: 2013-11-23
Hi all
I want to change the position between 2 objects in an arraylist.
i.e. if my arrayList contains objects as follows:
myObj1
myObj2
myObj3
myObj4
I want to change myObj2 - myObj3:
myObj1
myObj3
myObj2
myObj4

Any ideas?
0
Comment
Question by:thanassis
2 Comments
 
LVL 10

Accepted Solution

by:
effx earned 125 total points
ID: 20345800
myObjTmp = myObj2
myObj2 = myObj3
myObj3 = myObjTmp
0
 
LVL 23

Expert Comment

by:Ajay-Singh
ID: 20346913
Use this,
 
public void swap(List l, int x, int y) {
    Object t = l.get(x);
  l.set(x, l.get(y));
    l.set(y, t);
}
0

Featured Post

Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

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

An old method to applying the Singleton pattern in your Java code is to check if a static instance, defined in the same class that needs to be instantiated once and only once, is null and then create a new instance; otherwise, the pre-existing insta…
INTRODUCTION Working with files is a moderately common task in Java.  For most projects hard coding the file names, using parameters in configuration files, or using command-line arguments is sufficient.   However, when your application has vi…
Video by: Michael
Viewers learn about how to reduce the potential repetitiveness of coding in main by developing methods to perform specific tasks for their program. Additionally, objects are introduced for the purpose of learning how to call methods in Java. Define …
The viewer will learn how to implement Singleton Design Pattern in Java.

679 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