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Mention 5 basic difference between Array List and Vector in Java Colletion FrameWork.
Vector is unsynchronized wheras ArrayList is synchronized.
nextcome
- Jul 31st, 2010
ArrayList vs Vector1. Not thread-safe - Thread-safe2. Default size 0 - Default size is 103. Faster - Slower4. Belongs to legacy classes - Belongs to Collection framework5. User Iterator (fail-safe) - Enumator (no guarantee)Thanks
jyoti.bhandari
- Jun 11th, 2009
1. default arraylist size is 0 at initialization and vector is 102. vector is synchronized arraylist not3. vector increase its size double and arraylist half its initial size4. vector comes with legency classes but arraylist not5. vector cms with jdk 1.4 arraylist not
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How to Synchronize the HashMap
Any Body Tell about this
pitu2000
- Aug 21st, 2010
After introduction of concurrency api in Java 1.5 we have one more way to synchronize a hashmap>> new java.util.concurrent.ConcurrentHashMap(hashmapObj);
EshaPrasad
- Apr 21st, 2009
We can do as given belowHashMap hm = new HashMap(); HashMap hm2 = (HashMap)Collections.synchronizedMap(hm); ArrayList a1 = new ArrayList(); ArrayList a2 = (ArrayList)Collections.synchronizedList(...
