Micro optimizations in Java

Benchmarks for series of articles "Micro optimizations in Java."

NOTE: You need JMH Plugin in order to launch the benchmarks from the IDE.

Content

Micro optimizations in Java. String.equals() benchmarks:

• "".equals(s) vs s.isEmpty()
• s.equals("/") vs oneCharEquals('/')

Micro optimizations in Java. String.equalsIgnoreCase() benchmarks:

• s.equalsIgnoreCase() vs s.equals(s.toLowerCase())
• s.toLowerCase().startsWith() vs s.regionMatches()

Micro optimizations in Java. Good, nice and slow Enum benchmarks:

• Enum.valueOf vs switch
• Enum.values() vs cache variable

Micro optimizations in Java. String.replaceAll benchmarks:

• String.replaceAll vs String.replace
• String.replace(String, String) vs String.replace(char, char)
• String.replace(String, String) vs StringUtils.remove(String, char)