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java - What is better? if..else or multiple simple if

talking about java performance .. what is better? if..else or multiple simple if

if( condition ) {
  some_code;
  return value;
}
else if( condition ) {
  some_code;
  return value;
}
else if( condition ) {
  some_code;
  return value;
}
else {
  some_code;
  return value;
}

or

if( condition ) {
  some_code;
  return value;
}

if( condition ) {
  some_code;
  return value;
}

if( condition ) {
  some_code;
  return value;
}

some_code;    
return value;

Interested in your thoughts

Thnx !

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1 Answer

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by (71.8m points)

There is no difference, performance-wise. Choose the most readable option, which could be either depending on what the code does.

In general do not worry about these micro-optimizations. Optimization should only come after you've determined there is a performance problem that needs to be fixed.

"We should forget about small efficiencies, say about 97% of the time: premature optimization is the root of all evil." —Donald Knuth


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