string formatting : https://zetcode.com/golang/string-format/
formatting : https://pkg.go.dev/fmt
%T is used to print type of value

basic datatypes

bool

string

integer

int  int8(byte)  int16(short in java)  int32(rune/ int in java)  int64(long in java) : 
uint uint8 uint16 uint32 uint64 uintptr

byte // alias for uint8

rune // alias for int32 , represents a Unicode code point

float32 float64(double in java)

complex64 complex128