golang tutorial - Data types - golang - go programming language - google go - go language - go program - google language
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Below are the data types in Go language
| S.N. | Types and Description |
|---|---|
| 1. | Boolean Types They are boolean types and consists of the two predefined constants: (a) true (b) false |
| 2. | Numeric Types They are again arithmetic types and they represents a) integer types or b) floating point values. |
| 3. | String Types:
|
| 4. | Derived Types: (a) Pointer types, (b) Array types, (c) Structure types, (d) Union types and (e) Function types f) Slice types g) Function types h) Interface types i) Map types j) Channel Types |
Sample program:
package main
import "fmt"
func main() {
fmt.Println("go lang" + "from wikitechy")
fmt.Println("2+2 =", 2+2)
fmt.Println("7.0/3.0 =", 7.0/3.0)
fmt.Println(true && false)
fmt.Println(true || false)
fmt.Println(!true)
}click below button to copy the code. By - golang tutorial - team
Output :
$ go run values.go
Golang from wikitechy
2+2 = 4
7.0/3.0 = 2.3333333333333335
false
true
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Integer Types
- Below is the sub classification in integer types
| S.N. | Types and Description |
|---|---|
| 1. | uint8 Unsigned 8-bit integers (0 to 255) |
| 2. | uint16 Unsigned 16-bit integers (0 to 65535) |
| 3. | uint32 Unsigned 32-bit integers (0 to 4294967295) |
| 4. | uint64 Unsigned 64-bit integers (0 to 18446744073709551615) |
| 5. | int8 Signed 8-bit integers (-128 to 127) |
| 6. | int16 Signed 16-bit integers (-32768 to 32767) |
| 7. | int32 Signed 32-bit integers (-2147483648 to 2147483647) |
| 8. | int64 Signed 64-bit integers (-9223372036854775808 to 9223372036854775807) |
Floating Types
- Below is the sub classification in float types
| S.N. | Types and Description |
|---|---|
| 1. | float32 IEEE-754 32-bit floating-point numbers |
| 2. | float64 IEEE-754 64-bit floating-point numbers |
| 3. | complex64 Complex numbers with float32 real and imaginary parts |
| 4. | complex128 Complex numbers with float64 real and imaginary parts |
- The value of an n-bit integer is n bits and is represented using two's complement arithmetic operations.
Other Numeric Types
- Below is the sub classification in numeric types,
| S.N. | Types and Description |
|---|---|
| 1. | byte same as uint8 |
| 2. | rune same as int32 |
| 3. | uint 32 or 64 bits |
| 4. | int same size as uint |
| 5. | uintptr an unsigned integer to store the uninterpreted bits of a pointer value |