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This module contains review questions and answers keyed to the module titled Jb0230: Java OOP: Flow of Control.

Revised: Mon Mar 28 15:41:09 CDT 2016

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Table of contents

Preface

This module contains review questions and answers keyed to the module titled Jb0230: Java OOP: Flow of Control .

The questions and the answers are connected by hyperlinks to make it easy for you to navigate from the question to the answer and back again.

Questions

Question 1 .

List and describe eight of the statements used in Java programs to alter or control the logical flow of the program.

Answer 1

Question 2

Provide pseudo-code that illustrates the general syntax of a while statement.

Answer 2

Question 3

True or false? During the execution of a while statement, the program will continue to execute the statement or compound statement for as long as the conditional expression evaluates to true, or until a break , continue ,or return statement is encountered. If false, explain why.

Answer 3

Question 4

True or false? A while loop is an entry condition loop. If false, explain why.

Answer 4

Question 5

What is the significance of an entry condition loop?

Answer 5

Question 6

Provide pseudo-code illustrating the general syntax of the if-else statement.

Answer 6

Question 7

Provide pseudo-code illustrating the general syntax of the switch-case statement.

Answer 7

Question 8

Describe the behavior of a switch-case statement. Provide a pseudo-code fragment that illustrates your description of the behavior. Do notinclude a description of labeled break statements.

Answer 8

Question 9

What are the three actions normally involved in the operation of a loop (in addition to executing the code in the body of the loop) ?

Answer 9

Question 10

True or false? A for loop header consists of three clauses separated by colons. If false, explain why.

Answer 10

Question 11

Provide pseudo-code illustrating the general syntax of a for loop

Answer 11

Question 12

True or false? In a for loop, the first and third clauses within the parentheses can contain one or more expressions, separated by thecomma operator. If False, explain why.

Answer 12

Question 13

What is the guarantee made by the comma operator ?

Answer 13

Question 14

True or false? The expressions within the first clause in the parentheses in a for loop are executed only once during each iteration of the loop. If false, explain why.

Answer 14

Question 15

While any legal expression(s) may be contained in the first clause within the parentheses of a for loop, the first clause has a specific purpose. What is that purpose?

Answer 15

Question 16

True or false? Variables can be declared and initialized within the first clause in the parentheses of a for loop. If false, explain why.

Answer 16

Question 17

True or false? The second clause in the parentheses of a for loop consists of a single expression which must eventually evaluate to true tocause the loop to terminate. If false, explain why.

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Source:  OpenStax, Object-oriented programming (oop) with java. OpenStax CNX. Jun 29, 2016 Download for free at https://legacy.cnx.org/content/col11441/1.201
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