Public and Private variables

Go uses a naming convention to indicate the visibility and accessibility of variables, functions, and types.

Exported (public) names

If a variable, function, or type name starts with an uppercase letter, it is considered exported (public) and can be accessed from other packages. For example, if you have a variable named MyVariable or a function named MyFunction, they are considered public and can be accessed from other packages

package mypackage

// Exported variable
var MyVariable int

// Exported function
func MyFunction() {
    // ...
}

Unexported (private) names

If a variable, function, or type name starts with a lowercase letter, it is considered unexported (private) and can only be accessed within the same package. For example, if you have a variable named myVariable or a function named myFunction, they are considered private and cannot be accessed from other packages

package mypackage

// Unexported variable
var myVariable int

// Unexported function
func myFunction() {
    // ...
}

So, in summary, Go doesn't have explicit access modifiers like public or private, but it relies on the naming convention to determine the visibility and accessibility of entities within and outside a package