What are null pointer exceptions in Go?

What are null pointer exceptions in Go?

Null pointer exceptions occur when you try to dereference a nil pointer. In Go, this can lead to runtime panics.

How can I avoid null pointer exceptions in my Go code?

You can avoid them by checking if a pointer is nil before dereferencing it, and by using the zero value of types.

Can you give me an example of a null pointer exception in Go?

Sure! Here's a simple example:

var p *int
fmt.Println(*p) // This will cause a panic because p is nil.

What should I do if I encounter a null pointer exception?

You should check your code for nil pointers and handle them appropriately, possibly using error handling.