java:elementAt(int) is undefined for the type Résolu

Question

Bonjour, 

import java.util.Vector;
public class DupValue 
{
	public static void main(String[]args)
	{
		String tmpVector;
		Vector  v=new Vector();
		v.add("Delhi");
		v.add("Mumbai");
		v.add("Calcutta");
		v.add("Chennai");
		v.add("Delhi");
		Vector tempVector=new Vector();
		String tmpValue;
		for(int j=0; j<=v.size();j++)
		{
			tmpValue=(String)v.elementAt(j);
			if(tmpValue!=null)
			{
				if(tmpVector.isEmpty())
					tmpVector.addElement(tmpValue);
				if (tmpVector.indexOf(tmpValue==-1))
					tmpVector.addElement(tmpValue);
			}
		}
		for(int j=0; j<tmpVector.size(); j++)
		{
			System.out.print(tmpVector.elementAt(j));
		}
	}
}


en compilant mon prg,ce dernier m'afficher une erreur de message 
Exception in thread "main" java.lang.Error: Unresolved compilation problems: 
	The method addElement(String) is undefined for the type String
	Incompatible operand types String and int
	The method addElement(String) is undefined for the type String
	The method size() is undefined for the type String
	The method elementAt(int) is undefined for the type String

	at DupValue.main(DupValue.java:21)

la ligne 21 est
tmpVector.addElement(tmpValue);

aidez moi svp
Configuration: Windows 7 / Firefox 13.0.1

domxaline · Answer

quand j'ecrit comme suivant:  

for(int j=0; j<=v.size();j++) 
  { 
   tmpValue=(String)v.elementAt(j); 
   if(tmpValue!=null) 
   { 
    if(tmpVector.isEmpty())     
     tmpVector.addElement(tmpValue); 

    if (tmpVector.indexOf(tmpValue==-1)) 
     tmpVector.addElement(tmpValue); 
   } 
  } 
  for(int j=0; j<tmpVector.size(); j++) 
  { 
   System.out.print(tmpVector.elementAt(j)); 
  } 

Exception in thread "main" java.lang.Error: Unresolved compilation problems:  
 The method addElement(String) is undefined for the type String 
 Incompatible operand types String and int 
 The method addElement(String) is undefined for the type String 
 The method size() is undefined for the type String 
 The method elementAt(int) is undefined for the type String 

 at DupValue.main(DupValue.java:21) 


la ligne 21 est   
tmpVector(int).addElement(tmpValue);  


aidez moi svp

domxaline · Answer

j'ai résolu mon problème

import java.util.Vector;
public class DupValue 
{
	public static void main(String[]args)
	{
		Vector  v=new Vector();
		v.add("Delhi");
		v.add("Mumbai");
		v.add("Calcutta");
		v.add("Chennai");
		v.add("Delhi");
		Vector tmpVector=new Vector();
		String tmpValue;
		for(int j=0; j<v.size();j++)
		{
			tmpValue=(String)v.elementAt(j);
			if(tmpValue!=null)
			{
				if(tmpVector.isEmpty())
				{
					tmpVector.addElement(tmpValue);
				}
				if (tmpVector.indexOf(tmpValue)==-1)
				{
					tmpVector.addElement(tmpValue);
				}
			}
		}
		for(int j=0; j<tmpVector.size(); j++)
		{
			System.out.print(tmpVector.elementAt(j)+",");
		}
	}
}

 
merci d'avance

Java:elementAt(int) is undefined for the type

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