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Junior — Middle

Tell us about your experience with the use of scope in programming.

sobes.tech AI

Answer from AI

Scope in programming defines where variables or functions are accessible. In Android development, I used different scope types:

  • Local scope — variables declared inside a method or block are accessible only there. For example, variables inside onCreate() of an activity.
  • Class scope — class fields are accessible in all methods of that class.
  • Package scope — in Java and Kotlin, access modifiers (package-private) restrict access within the package.
  • Global scope — for example, singletons or Application objects accessible throughout the app.

Example usage: to store UI state, I use activity class fields, and for temporary data, local variables in methods. I also use private and protected to restrict access to internal data, improving encapsulation and security.