What scopes of variables or functions have you had to use in your projects?

In Android development, different scopes of variables and functions are often used to manage access and data lifecycle:

• private — accessible only within the class, used for encapsulation.
• protected — accessible within the class and its subclasses.
• public — accessible from anywhere.
• package-private (no modifier) — accessible within the same package.

For example, UI state variables are usually made private to prevent unwanted modification from outside. Local variables within methods are also frequently used for temporary data.

class Example {
    private var count = 0  // accessible only within the class

    fun increment() {
        val step = 1  // local variable
        count += step
    }
}