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Creating a Class that throws IndexOutOfBoundsException

Hello

I was wondering if someone can help me create a class that throws an IndexOutOfBoundsException

i.e. like
class ThrowingExcep{
public Object elementAt (int index)throws IndexOutOfBoundsException{
return ___?____ ;}
}

I do not know what to put in the return statement

Thanks in advance
Will

ASKER CERTIFIED SOLUTION

Sasha_Mapa

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imladris

If I understand the intent correctly, the exception would be thrown when something went wrong (and no return would be needed), otherwise you return the relevant Object. So I think it would look something like:

class ThrowingExcep{
{ Vector l;
int max;

ThrowingExcep()
{ l=new Vector();
max=0;
return;
}

public Object elementAt(int index) throws IndexOutOfBoundsException
{ if(index>=max)throw new OutOfBoundsException();
return(l.elementAt(index));
}
}

ozymandias

import java.util.*;

class StringStore{

Vector v;

public StringStore(){
v = new Vector();
}

public void putString(String s){
v.add(s);
}

public String getString(int index) throws IndexOutOfBoundsException{
if (index > v.size()){
throw new IndexOutOfBoundsException();
}
return (String)v.elementAt(index);
}
}

ozymandias

Woah...everyone posted at once.
Should have reloaded before I hit submit.

willcont

ASKER

Thank you