- Byte = 8 bits
- Short - 16 bits
- Int - 32 bits
- Long - 64 bits
- Float - 32 bits (not precise, don't use for financials)
- Double - 64 bits - not very precise, don't use for financials.
- Char - 16 bits
- Boolean - True/ False
- Control + L = Clear Screen
JVM VS JRE VS JDK
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