Go Language for Java Developers Part 3
Part 3 of a 5 part series that explains the Go language to Java developers.
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The Go language is a statically typed programming language. This means that variable always has specific type that can't be changed. The Go language data type can be divided in main three categories:
- Boolean: A boolean type represents the set of Boolean truth values denoted by the predeclared constants true and false. The predeclared boolean type is bool.
- Numeric: A numeric type represents sets of integer or floating-point values. The predeclared architecture-independent numeric types are: int, float32, float64, etc
- String: A string type represents the set of string values. A string value is a (possibly empty) sequence of bytes. Strings are immutable: once created, it is impossible to change the contents of a string. The predeclared string type is string.
|Data Type||Default Value||Range|
|bool||false||true or false|
|int||0||either int32 or int64|
|int8||0||signed 16-bit integers (-32768 to 32767)|
|int16||0||signed 16-bit integers (-32768 to 32767)|
|int32||0||signed 32-bit integers (-2147483648 to 2147483647)|
|int64||0||signed 64-bit integers (-9223372036854775808 to 9223372036854775807)|
|uint||0||either 32 or 64 bits|
|uint8||0||unsigned 8-bit integers (0 to 255)|
|uint16||0||unsigned 16-bit integers (0 to 65535)|
|uint32||0||unsigned 32-bit integers (0 to 4294967295)|
|uint64||0||unsigned 64-bit integers (0 to 18446744073709551615)|
|float32||0||IEEE-754 32-bit floating-point numbers|
|float64||0||IEEE-754 64-bit floating-point numbers|
Next article we will learn about variables in the Go Language
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