?
Solved

Adding element to a Vector causes StackOverflowError

Posted on 2007-04-03
2
Medium Priority
?
170 Views
Last Modified: 2013-11-23
Hi,
I get a 'Stack overflow error:null' with the below code (relevant bits posted below) when adding an instance of class AClass

to a Vector. Does anyone know what's causing this, please help...

java.lang.StackOverflowError
      at AClass.addTank(AClass.java:25)
      at AClass.<init>(AClass.java:19)
      at AClass.addTank(AClass.java:25)
      at AClass.<init>(AClass.java:19)
      at AClass.addTank(AClass.java:25)
      at AClass.<init>(AClass.java:19)

Tonnes more of these

import java.util.Vector;

   public static Vector AClasss = new Vector();

    public AClass()
    {
        setX(targetX);
        setY(targetY);
        addTank();      //Line 19
        start();
    }


    public void addTank()
    {
        AClass AClass = new AClass();      //Line 25
        AClasss.addElement(AClass);         //Add the new instance to the vector
    }
0
Comment
Question by:mark_667
[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
2 Comments
 
LVL 14

Accepted Solution

by:
CPColin earned 500 total points
ID: 18846834
The way you have it now, addTank() creates a new AClass object, but the constructor for AClass calls addTank(), which traps it in an endless loop until the Java VM runs out of space and gives up. Either you need to take the addTank() call out of the constructor, or the "new AClass()" line out of addTank().
0
 
LVL 23

Expert Comment

by:Ajay-Singh
ID: 18848344
Line 25 - create a different object than AClass. Try with something like:

Integer x = new Ineteger(10);
0

Featured Post

Technology Partners: 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

For beginner Java programmers or at least those new to the Eclipse IDE, the following tutorial will show some (four) ways in which you can import your Java projects to your Eclipse workbench. Introduction While learning Java can be done with…
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…
This tutorial covers a practical example of lazy loading technique and early loading technique in a Singleton Design Pattern.
This tutorial will introduce the viewer to VisualVM for the Java platform application. This video explains an example program and covers the Overview, Monitor, and Heap Dump tabs.
Suggested Courses
Course of the Month12 days, 15 hours left to enroll

777 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