Re: when will Tuple be std?
- From: Lew <lew@xxxxxxxxxxxxx>
- Date: Fri, 28 Dec 2007 09:15:49 -0500
apm35@xxxxxxxxxxxxxxxxxx wrote:
I have the need for a Tuple in my java program and hoped it would be
there as std. I cannot find it.
A sexually-transmitted disease?
I have found the project, http://javatuple.com/index.shtml, which is
useful and encouraging, but I wonder how long it will be before Tuple
is std.
Never, but it only takes about ten minutes to write one.
public class Pair <T, U>
{
private final T first;
private final U second;
public Pair ( T t, U u )
{
first = t;
second = u;
}
public final T getFirst() { return first; }
public final U getSecond() { return second; }
@SuppressWarnings ("unchecked" )
@Override public boolean equals( Object oth )
{
if ( this == oth ) { return true; }
if ( ! (oth instanceof Pair) ) { return false; }
Pair <T, U> pair = (Pair<T, U>) oth;
return (first == null? pair.first == null : first.equals( pair.first ))
&& (second == null? pair.second == null : second.equals( pair.second ));
}
@Override public int hashCode()
{
return first.hashCode() * 31 + second.hashCode();
}
}
There you go, all your googling satisfied.
--
Lew
.
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