java long occupies 64 bits, because one byte is equal to 8 bits, so long occupies 8 bytes, which is 64 bits; for other types, float occupies 4 bytes or 32 bits, and char occupies 2 Bytes are 16 bits.
[Related learning recommendations: java basic tutorial]
java long occupies 64 bits
1. Byte: byte: a unit of measurement used to measure storage capacity; bit: bit
2. One byte is equal to 8 bits. 1byte = 8bit
Integer type:
- ##byte: 1 byte 8 bits -128~127
- short: 2 bytes, 16 bits
- int: 4 bytes, 32 bits
- long: 8 bytes 64 bits
Floating point type:
- float: 4 bytes 32 bits
- double: 8 bytes 64 bits
char type:
char occupies 2 bytes and 16 bits, so a char type can store one Chinese character.Boolean type
boolean: (true or false) (not specified how many bytes 1 byte 1 bit 4 bytes)Related recommendations:
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