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Last active August 29, 2015 14:01
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Numbers that every Java programmers and developers should know!
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java-numbers.md

Java numbers..

that every Java programmers/developers should know. Feel free to contribute by forking and pull requests! :bowtie:

###Size of primitive data types

  • byte: 1 byte, 8-bit signed two's complement, default 0
  • short: 2 bytes, 16-bit signed two's complement, default 0
  • int: 4 bytes, 32-bit signed two's complement, default 0
  • long: 8 bytes, 64-bit signed two's complement, default 0L
  • float: 4 bytes, 32-bit, default 0.0f
  • double: 8 bytes, 64-bit, default 0.0d
  • boolean: undefined, default false
  • char: 2 bytes, 16-bit, default '\u0000'
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