Difference between null vector and empty Vector

What is the diffrence between null vector and empty vector.
[66 byte] By [rajpuniaa] at [2007-10-2 21:19:11]
# 1
'null Vectors' do not exist.
dubwaia at 2007-7-14 0:28:20 > top of Java-index,Core,Core APIs...
# 2
null vector means the JVM doesn't allocate memory.It doesn't existin memory. NO instance!empty vector means the JVM allocated memory.It exists in memory.it's a instance than is accessabel.But only have on elements.GL&HF.
wyvern_zhanga at 2007-7-14 0:28:20 > top of Java-index,Core,Core APIs...
# 3
Imagine a blank sheet of paper. This is an empty vector. Now imagine NOT a sheet of paper. This is a null vector.We encounter this even in reality: sometimes we need a name for something which doesn't just exist.
Mongera at 2007-7-14 0:28:21 > top of Java-index,Core,Core APIs...