Expression Versus Statement

Question

I\'m asking with regards to c#, but I assume its the same in most other languages.

Does anyone have a good definition of expressions and statements

Answer 1

Statements -> Instructions to follow sequentially
Expressions -> Evaluation that returns a value

Statements are basically like steps, or instructions in an algorithm, the result of the execution of a statement is the actualization of the instruction pointer (so-called in assembler)

Expressions do not imply and execution order at first sight, their purpose is to evaluate and return a value. In the imperative programming languages the evaluation of an expression has an order, but it is just because of the imperative model, but it is not their essence.

Examples of Statements:

for
goto
return
if

(all of them imply the advance of the line (statement) of execution to another line)

Example of expressions:

2+2

(it doesn't imply the idea of execution, but of the evaluation)