Solved

RemoveFirst J2ME

Posted on 2012-03-09
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Last Modified: 2013-11-24
I have the following code in Java :

MyPacket = MsgQueue.removeFirst();

MsgQueue is a list I want to mimic the same behaviour in J2ME using a Vector:

Is there a way to do that ?
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Question by:bachra04
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4 Comments
 
LVL 47

Expert Comment

by:for_yan
ID: 37703138
I guess you can say remove(0) fro a Vector
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Author Comment

by:bachra04
ID: 37703153
Not exactly :

 * This method removes first element of List and shifts the subsequent
     * elements to the left. It returns the element previously at the first index
     * of the  List.
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LVL 47

Expert Comment

by:for_yan
ID: 37703169
public Object removeFirst() {
Object ob = v.elementAt(0);
v.remove(0);
return ob;

}


remove(0) will also change indexes odf all subsequent emelements:

http://docs.oracle.com/javase/1.4.2/docs/api/java/util/Vector.html#remove%28int%29
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Accepted Solution

by:
for_yan earned 500 total points
ID: 37703193
so I don't know if you use Vector as association - so you create wrapper
around vector - then the method above with v representing Vector is fine
If you extend Vector then
you just use

Object ob = this.elementAt(0);
this.remove(0);

instead of v
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