Java: define terms initialization, declaration and assignment

Question

I find the defs circular, the subjects are defined by their verbs but the verbs are undefined! So how do you define them?

The Circular Definitions

Answer 1

declaration: whenever you define a new variable with its type

assignment: whenever you change the value of a variable by giving it a new value

initialization: an assignment that is done together with the declaration, or in any case the first assignment that is done with a variable, usually it's a constructor call for an object or a plain assignment for a variable