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Miscellaneous

This section contains a variety of miscellaneous information.

Housekeeping material
  • Module name: Ap0030: Self-assessment, Relational Operators, Increment Operator, and Control Structures
  • File: Ap0030.htm
  • Originally published: January, 2002
  • Published at cnx.org: 12/02/12
  • Revised: 12/03/14
Disclaimers:

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In the past, unknown individuals have copied my modules from cnx.org, converted them to Kindle books, and placed them for sale onAmazon.com showing me as the author. I neither receive compensation for those sales nor do I know who does receive compensation. If youpurchase such a book, please be aware that it is a copy of a module that is freely available on cnx.org and that it was made andpublished without my prior knowledge.

Affiliation : I am a professor of Computer Information Technology at Austin Community College in Austin, TX.

Answers

Answer 15

C. 0 1 2 3 3

Explanation 15

No return statement is required

A method with a signature that specifies a void return type does not require a return statement.

However, such a method may contain a return statement, provided that it is terminated immediately with a semicolon (no expression between the word return and the semicolon) .

(Every method whose return type is not void must contain at least one return statement.)

Multiple return statements are allowed

Any method may contain any number of return statements provided that they make sense from a syntax viewpoint, and provided the expression (or lack thereof) between the word return and the semicolon evaluates to the type specified in the method signature (or a type that will be automatically converted to the type specified in the method signature) .

A return statement terminates a method immediately

Whenever the execution stream encounters any return statement, the method is terminated immediately, and control is returned to the method that called thatmethod.

Back to Question 15

Answer 14

A. Compiler Error

Explanation 14

Missing return statement

This program produces the following compiler error under JDK 1.3:

Ap037.java:11: missing return statement public int doLoop(){

Even though this program contains a return statement inside the for loop, it is still necessary to place a return statement at the end of the method to satisfy the compiler. (The one shown in the code is a comment.)

The method named doLoop must return a value of type double . Apparently the compiler assumes that the return statement inside the for loop may never be executed (although that isn't true in this case) .

Both of the return statements must return a value that satisfies the double type requirement given in the method signature.

Questions & Answers

what is mutation
Janga Reply
what is a cell
Sifune Reply
how is urine form
Sifune
what is antagonism?
mahase Reply
classification of plants, gymnosperm features.
Linsy Reply
what is the features of gymnosperm
Linsy
how many types of solid did we have
Samuel Reply
what is an ionic bond
Samuel
What is Atoms
Daprince Reply
what is fallopian tube
Merolyn
what is bladder
Merolyn
what's bulbourethral gland
Eduek Reply
urine is formed in the nephron of the renal medulla in the kidney. It starts from filtration, then selective reabsorption and finally secretion
onuoha Reply
State the evolution relation and relevance between endoplasmic reticulum and cytoskeleton as it relates to cell.
Jeremiah
what is heart
Konadu Reply
how is urine formed in human
Konadu
how is urine formed in human
Rahma
what is the diference between a cavity and a canal
Pelagie Reply
what is the causative agent of malaria
Diamond
malaria is caused by an insect called mosquito.
Naomi
Malaria is cause by female anopheles mosquito
Isaac
Malaria is caused by plasmodium Female anopheles mosquitoe is d carrier
Olalekan
a canal is more needed in a root but a cavity is a bad effect
Commander
what are pathogens
Don Reply
In biology, a pathogen (Greek: πάθος pathos "suffering", "passion" and -γενής -genēs "producer of") in the oldest and broadest sense, is anything that can produce disease. A pathogen may also be referred to as an infectious agent, or simply a germ. The term pathogen came into use in the 1880s.[1][2
Zainab
A virus
Commander
Definition of respiration
Muhsin Reply
respiration is the process in which we breath in oxygen and breath out carbon dioxide
Achor
how are lungs work
Commander
where does digestion begins
Achiri Reply
in the mouth
EZEKIEL
what are the functions of follicle stimulating harmones?
Rashima Reply
stimulates the follicle to release the mature ovum into the oviduct
Davonte
what are the functions of Endocrine and pituitary gland
Chinaza
endocrine secrete hormone and regulate body process
Achor
while pituitary gland is an example of endocrine system and it's found in the Brain
Achor
what's biology?
Egbodo Reply
Biology is the study of living organisms, divided into many specialized field that cover their morphology, physiology,anatomy, behaviour,origin and distribution.
Lisah
biology is the study of life.
Alfreda
Biology is the study of how living organisms live and survive in a specific environment
Sifune
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