ArrayList and Vector ties and differences

Same point:

• Use an array to achieve the underlying
• The same function, and the like to achieve CRUD operations similar method
• Variable-length array of structures

 

difference:

• Vector is an early version of the JDK provided, ArrayList is a new version of an alternative Vector
• Methods of Vector are synchronized, thread-safe; ArrayList non-thread-safe, but the performance is better than Vector
• The default initial capacity is 10, Vector default double expansion, expansion of the size can be specified; only 50% increase in the ArrayList

 

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