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Why it doesn't work? (use o Vector)

  Asked By: Frankie    Date: Jul 05    Category: Java    Views: 7618
  

import java.*;
import java.util.*;


public class prova{

public static void main(String args[]){

Integer arr1[]=new Integer[2];
Integer arr2[]=new Integer[2];
Vector vettore=new Vector();
vettore.add(arr1);
arr2=vettore.get(1);
}
}

What is the right manner to do it working? and why.


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2 Answers Found

 
Answer #1    Answered By: William Bouchard     Answered On: Jul 05

Instead of

arr2=vettore.get(1);

try

arr2 = (Integer[])vettore.get(0);

 
Answer #2    Answered By: Jean Bell     Answered On: Jul 05

improved code:

import java.*;
import java.util.*;


public class  prova{

public static  void main(String args[]){

Integer arr1[]=new Integer[2];
Integer arr2[]=new Integer[2];
Vector vettore=new Vector();
vettore.addElement(arr1);
arr2=(Integer[]) vettore.elementAt(0);
}
}

> What is the right manner to do it working? and why.
Casting is done when you take something out of a Vectro because
Vectors only store Objects handles. The other method calls were just
wrong. Oh and vectors start counting their elements at 0.

 
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