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Java By Comparison
book

Java By Comparison

by Simon Harrer, Linus Dietz, Jörg Lenhard
March 2018
Intermediate to advanced content levelIntermediate to advanced
208 pages
4h 52m
English
Pragmatic Bookshelf
Content preview from Java By Comparison

Avoid Negations

 class​ Laboratory {
 
  Microscope microscope;
 
  Result analyze(Sample sample) {
»if​ (microscope.isInorganic(sample)) {
 return​ Result.INORGANIC;
  } ​else​ {
 return​ analyzeOrganic(sample);
  }
  }
 
 private​ Result analyzeOrganic(Sample sample) {
»if​ (!microscope.isHumanoid(sample)) {
 return​ Result.ALIEN;
  } ​else​ {
 return​ Result.HUMANOID;
  }
  }
 }

Has anyone ever told you to “think positively”? Turns out, positive expressions are better in your code than negative ones because they’re often easier to grasp and they take up slightly less space.

The problem code shown here is another variant of the Laboratory component. It provides two methods that take a Sample and return a Result. There’s nothing ...

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Publisher Resources

ISBN: 9781680505887Errata Page