Databases
StackOverflow2013
Postsdbo
POjava local variable unavailable
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POjava local variable unavailable
    primarykey
    data
    text
    <p>I'm getting the following error from the eclipse debugger: local variable unavailable. Tried to trim the code as much as possible. The problem is pretty simple, I have to use the DivisiveUI UpdateLog() method, from the Divise class, using variables from the Cluster class. The Divise has a list containing all of the clusters. Divisive and DivisiveUI has a reference to each other. How can I get access to the variables: sumDistance, avgDistance from the Divisive class? Tried writing a method in the Divisive class, still couldn't access the needed variables :| Thank you!</p> <p>Error crops at log.append(text+"\n"); Source Not Found.</p> <p>Divisive:</p> <pre><code> package clusters; import java.util.LinkedList; public class Divisive implements Runnable { LinkedList&lt;Record&gt; mainTable; LinkedList&lt;Cluster&gt; clusterList; int meassureType; DivisiveUI parent; int clusterCount; Divisive(LinkedList&lt;Record&gt; mainTable, DivisiveUI parent) { this.parent=parent; this.mainTable=new LinkedList&lt;Record&gt;(mainTable); setMeassureType(0); } } </code></pre> <p>DivisiveUI:</p> <pre><code> package clusters; @SuppressWarnings("serial") public class DivisiveUI extends JPanel implements Runnable{ ClusteringSelection parent; Divisive divisive; JTextField clusterCount; JTextArea log; public void UpdateLog(String text) { log.append(text+"\n"); log.setCaretPosition(log.getDocument().getLength()); } } </code></pre> <p>Cluster:</p> <pre><code> package clusters; public class Cluster { LinkedList&lt;Record&gt; table; LinkedList&lt;MatrixRow&gt; matrix; LinkedList&lt;Double&gt; center; double sumDistance; double avgDistance; int meassureType; } </code></pre>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USMustSeeMelons
    1. USMustSeeMelons
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POjava local variable unavailable
      1. This table or related slice is empty.
      1. VTClose
    2. VO
      singulars
      1. POjava local variable unavailable
      1. This table or related slice is empty.
      1. VTDownMod
    3. VO
      singulars
      1. POjava local variable unavailable
      1. This table or related slice is empty.
      1. VTDownMod
    1. COWhat line of code causes the error? Can you show the actual full error text?
      singulars
      1. POjava local variable unavailable
      1. USHovercraft Full Of Eels
    2. COYou have nowhere initialized `log` variable..!!
      singulars
      1. POjava local variable unavailable
      1. USVishal K
    3. COI said i snipped the code + if it wasn't initialized, i wouldn't be getting an error for a unreachable variable.
      singulars
      1. POjava local variable unavailable
      1. USMustSeeMelons
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload