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The general form of the for statement can be expressed as follows: When using this version of the for statement, keep in mind that: 1  The initialization expression initializes the loop; it's executed once, as the loop begins. 2  When the termination expression evaluates to false, the loop terminates.
Imperative programming languages specify a sequential algorithm using declarations, expressions, and statements: 1  A declaration couples a variable name to a datatype â for example: var x: integer; 2  An expression yields a value â for example: 2 + 2 yields 4.