java - What does having a Parent / Child Relationship really means in Android Ecosystem? -

java - What does having a Parent / Child Relationship really means in Android Ecosystem? -

i have dilemma when said 2 activities having parent/child relationship in android ecosystem.

so 1 it:

activity-a spawns activity-b ? activity-a spawns activity-b , activity-b inherits parent activity-a ?

any idea/pointer appreciated.

java android inheritance android-activity parent-child