How do I search this Vector or String ?

[Fredrik Komstadius]

Hi!
I have a vector j that I need to search for one or more numbers. The program shall when it finds the number return some kind of value so that I can print out a element in another vector v... I can't figure out how to search the Vector.. I have converted the Vector elements I need into a String but that doesn't seem to make sense. Maybe if I converted the elements into ints or something? Well, I'm very much a newbie and very much lost... Help would be appreciated
/Bossakungen

[Michael Ernest]

bossakungen -
Please change your name to conform to JavaRanch's naming policy.

[Yu Chen]

If I understand you correctly, you need to search specific numbers in a Vector.
What vector contains are Objects. Try this,
For(Enumeration e = v.elements; e.hasMoreElements(); ) {
Integer i = (Integer) v.nextElement();
if(i.intValue() == numUWant)
doWhatUWant...;
continue;
}
}
-yc

[Anthony Villanueva]

Hi,
The class java.util.Collections (not to be confused with the java.util.Collection interface) has a static method binarySearch(List list, Object key). It returns an int which is the index of the matching Object in the Vector.
-anthony

[Jim Yingst]

The Collections.binarySearch() method is only useful if the Collection (i.e. the Vector in this case) has already been sorted - whether by Collections.sort(), or some other process which has ensured that the elements of the Collection are in order.
[ March 29, 2002: Message edited by: Jim Yingst ]

[Anthony Villanueva]

Hi,
Ah yes, you are correct in pointing that out.
-anthony

[Fredrik Komstadius]

Thanx guys! Really appreciate it! Sorry about that name thing, changed now