How to explain callbacks in plain english? How are they different from calling one function from another function?

Question

How to explain callbacks in plain English? How are they different from calling one function from another function taking some context from the calling function? How can thei

Answer 1

[edited]when we have two functions say functionA and functionB,if functionA depends on functionB.

then we call functionB as a callback function.this is widely used in Spring framework.