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Is using get () overly inefficient in Java?

I was wondering if it was more efficient to use get () overly on an object, or to store the return of get () in a variable and use that. For example, it would be more efficient to do this:

someObject.setColor(otherObject.getColor().r, otherObject.getColor().g, 
         otherObject.getColor().b);

or store it in a variable like this

Color color = otherObject.getColor();
someObject.setColor(color.r, color.g, color.b);
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2 answers


Option 1: You write code like example 1.

  • The java runtime may or may not optimize the code (to turn it into something like your example 2)
  • harder to read

Option 2: you write code like example 2.



  • does not rely on optimization with java runtime
  • easier to read

In my experience, the runtime difference can be ignored (you can't measure the difference unless you run in a giant loop), but that's what clean, straightforward code thinks.

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In example # 2

Color color = otherObject.getColor();
someObject.setColor(color.r, color.g, color.b);


you are creating a reference to the original object, so you are not using significant "extra" memory. plus it's more readable so +1 like # 2

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