What is Four parts on declaring a pointer?

Declaring a pointer involves four key parts:

1. Data Type: Specifies the type of data the pointer will point to (e.g., int, float, char).
2. Asterisk (*): Indicates that the variable being declared is a pointer.
3. Pointer Name: The identifier used to reference the pointer variable.
4. Initialization (optional): Assigning the pointer to the address of a variable using the address-of operator (&) or setting it to nullptr for safety.

For example, int *ptr; declares a pointer to an integer.