Question

QUESTION 1 1.   Which programming languages do not have iteration statements and why?        Imperative...

QUESTION 1
1.   Which programming languages do not have iteration statements and why?
       Imperative programming languages require recursion to do anything iteratively
       Object-Oriented Programming languages do not use iteration since functions operate over data structures.
       Functional programming languages since they do not use variables and counting loops require variables.
       Functional programming languages do not have variables and iteration requires variables to operate.
QUESTION 2
1.   One of the downsides of using expressions that produce results other than true or false is
       it hurts writability since we have to write such long expressions.
       it can cause side effects skewing the results of the rest of the code
       it is expensive to type-check
       it hurts readability since it may be confusion to know which route an execution will take.
QUESTION 3
1.   In mixed-mode expressions for Java,
       a narrowing conversion must be made explicitly via casting
       a widening conversion must be made explicitly via casting
       a narrowing conversion must be made implicitly via coercion
       a narrowing conversion must be made explicitly via coercion
QUESTION 4
1.   Which of the following is NOT a control flow structure?
       Assignment statement
       selection statement
       procedure call
       conditional target
QUESTION 5
1.   Why do many programming languages (like Java) have break and continue but not goto?
       break and continue are special situation gotos which are easier to use than goto.
       break and continue are special situation gotos which provide most of the functionality necessary without harming readability.
       break and continue can be used just like goto therefore goto is never necessary
       break and continue provide the same functionality without the overhead of goto

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Homework Answers

Answer #1

Answer 1:
Functional programming languages since they do not use variables and counting loops require variables.

Answer 2:
it hurts readability since it may be confusion to know which route an execution will take.

Answer 3: a narrowing conversion must be made explicitly via casting
Answer 4: Assignment statement

Answer 5: break and continue provide the same functionality without the overhead of goto

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