List the main data types in Go

Main data types in Go:

• bool — logical type (true/false)
• string — string
• int, int8, int16, int32, int64 — signed integer types of various lengths
• uint, uint8, uint16, uint32, uint64, uintptr — unsigned integer types
• byte — synonym for uint8, often used for working with bytes
• rune — synonym for int32, represents a Unicode code point
• float32, float64 — floating-point numbers
• complex64, complex128 — complex numbers

Besides primitives, there are composite types:

• array — fixed-length array
• slice — dynamic array
• map — hash table
• struct — structure
• interface — interface
• pointer — pointer

Example of variable declarations:

var a int = 10
var b float64 = 3.14
var s string = "hello"
var flag bool = true