Re: null you have, ... it null you don't

• Subject: Re: null you have, ... it null you don't
• From: Rob Lockstone <email@hidden>
• Date: Tue, 2 Mar 2004 16:44:04 -0800

Here's a fun one. Using java 1.4.2 on my nifty new ibook this fills the
Vector v with nulls:

String s1[] =
{"g","gt","f","a","z","e","qw","th","lslslslsl","this or that","this and
that","1123","#4lskdjf","asdf","fdsa","zxq","zyx"};

String o = "somekey";
Vector v = new Vector();

for(int x=0; x<s1.length; x++) {
HashMap hm = new HashMap();
v.add( hm.put(o, s1[x]) );

if (v.get(x) == null) System.out.println("wowzers");
}
But this doesn't:

String s1[] =
{"g","gt","f","a","z","e","qw","th","lslslslsl","this or that","this and
that","1123","#4lskdjf","asdf","fdsa","zxq","zyx"};

String o = "somekey";
Vector v = new Vector();

for(int x=0; x<s1.length; x++) {

HashMap hm = new HashMap();
hm.put(o, s1[x]);
v.add( hm );

if (v.get(x) == null) System.out.println("wowzers");
}


I'd love to know if this is a bug or by design!

Perhaps my iBook is overheating....


-----------------------------------------------------
Terrance Davis
Software Engineer
www.genedavissoftware.com
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