Performance of java if-else with return statement [duplicate]

by

As far as cpu time – NO DIFFERENCE. The compiler will probably optimise them to exactly the same byte-code anyway.

As far as technical debt is concerned – as soon as a real developer looks at this code and replaces it with:

private static final String[] numbers = {"ZERO", "ONE", "TWO"};

private String getString(int n) {
    return n >= 0 && n < numbers.length? numbers[n]:"-NA-");
}

you’ve just cost your company money.

More Related Contents:

  1. What is the relative performance difference of if/else versus switch statement in Java?
  2. Which “if” construct is faster – statement or ternary operator?
  3. Why can't we declare variables in if statement?
  4. java if else errors not working properly
  5. Repeat the “if” statement if it has to go to the “else” statement
  6. New to Java and having issues writing and example
  7. Why is printing “B” dramatically slower than printing “#”?
  8. Does use of final keyword in Java improve the performance?
  9. Why is creating a Thread said to be expensive?
  10. .toArray(new MyClass[0]) or .toArray(new MyClass[myList.size()])?
  11. Swing animation running extremely slow
  12. Java lambdas 20 times slower than anonymous classes
  13. Compiler error when declaring a variable inside if condition and no curly braces
  14. System.currentTimeMillis() vs. new Date() vs. Calendar.getInstance().getTime()
  15. Faster alternatives to Java’s reflection [closed]
  16. Java Swing; Two classes, where to put if statements and new actionlisteners?
  17. Java: what’s the big-O time of declaring an array of size n?
  18. Calling getters on an object vs. storing it as a local variable (memory footprint, performance)
  19. Performance difference between Java 8 lambdas and anonymous inner classes
  20. Best practice for passing many arguments to method?
  21. How to use this boolean in an if statement?
  22. What is the time complexity of HashMap.containsKey() in java?
  23. Most efficient Java primitive collections library [closed]
  24. Strange branching performance
  25. Short IF – ELSE statement
  26. Java split String performances
  27. Is it possible to force an existing Java application to use no more than x cores?
  28. ArrayList vs. Vectors in Java if thread safety isn’t a concern
  29. Is Hibernate an overkill for an Android application? [duplicate]
  30. is it possible to check if a char matches a list of possibilities?

Leave a Comment