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Difference between ordering by index and ordering by position

 
Greenhorn
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ArrayList orders data by index whereas LinkedHashSet orders data by insertion order. What is the difference? I wrote a sample program but both of them gave me the same output.



Are both Order By Index and Order By Insertion Order same? Please guide.
 
Ranch Hand
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Hm, ArrayList has the methods add(int index, E element) and set(int index, E element), which both do not follow 'order by insertion order'.

John
 
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