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TreeMap problems!

3 replies on 1 page. Most recent reply: Apr 2, 2002 9:02 AM by Eduardo

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Eduardo

Posts: 21
Nickname: eduardo
Registered: Feb, 2002

TreeMap problems! Posted: Apr 2, 2002 6:22 AM
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I'm trying to display TreeMap in the textArea, but it gives me the message bellow. Does anybody have a clue about why it is happening? The code looks fine!

Thanks!


TreeMap mSolutionq = new TreeMap();

mSolutionq.put(indexF, solutionq);


ListIterator d = mSolutionq.listIterator();
while ( d.hasNext() )
{
textArea.append( d.next() );
}


--------------------Configuration: EGARapidPrototype - JDK version 1.3.1_01 <Default>--------------------
C:\EGARapidPrototype\EGARapidPrototype\Fire DirectoryChooser.java:246: cannot resolve symbol
symbol : method listIterator ()
location: class java.util.TreeMap
ListIterator d = mSolutionq.listIterator();
^
C:\EGARapidPrototype\EGARapidPrototype\FireDirectoryChooser.java:249: append(java.lang.String) in javax.swing.JTextArea cannot be applied to (java.lang.Object)
textArea.append( d.next() );
^
2 errors

Process completed.


Singh M.

Posts: 154
Nickname: ms
Registered: Mar, 2002

Re: TreeMap problems! Posted: Apr 2, 2002 6:36 AM
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is there a method by the name of listIterator in TreeMap class??

Eduardo

Posts: 21
Nickname: eduardo
Registered: Feb, 2002

Re: TreeMap problems! Posted: Apr 2, 2002 7:08 AM
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Well... I haven't seen, so far. I've tried just iterator, as well and it didn't work. If so, how can I include it in the "append()"?

Eduardo

Posts: 21
Nickname: eduardo
Registered: Feb, 2002

Partially solved! Posted: Apr 2, 2002 9:02 AM
Reply to this message Reply
Yeah... I've tried this code and it works. I just have to find out how to use it, now.

for (Iterator i=mSolutionq.entrySet().iterator(); i.hasNext(); ) {
Map.Entry e = (Map.Entry) i.next();
textArea.append(e.getKey() + ": " + e.getValue()+'\n');

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