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at run time I want to add Objects to Arraylist,please the follow is best way or suggest best way

 
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at run time I want to add Objects to Arraylist,please the follow is best way or suggest best way

 
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Yeah it is correct. But what exactly do you want to do?
 
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In software design, there is seldom if ever a 'best way'. Often there are dozens of variables that must be considered. The primary ones are speed, memory use, and code readability. 99% of the time (in my opinion), the third one is the most important.
 
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