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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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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

Preparation and Applications of Nanomaterial for Drug Delivery
Hafiz Reply
Application of nanotechnology in medicine
what is variations in raman spectra for nanomaterials
Jyoti Reply
I only see partial conversation and what's the question here!
Crow Reply
what about nanotechnology for water purification
RAW Reply
please someone correct me if I'm wrong but I think one can use nanoparticles, specially silver nanoparticles for water treatment.
Damian
yes that's correct
Professor
I think
Professor
what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
Rafiq
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
Damian
How we are making nano material?
LITNING Reply
what is a peer
LITNING Reply
What is meant by 'nano scale'?
LITNING Reply
What is STMs full form?
LITNING
scanning tunneling microscope
Sahil
how nano science is used for hydrophobicity
Santosh
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
Rafiq
what is differents between GO and RGO?
Mahi
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
Rafiq
if virus is killing to make ARTIFICIAL DNA OF GRAPHENE FOR KILLED THE VIRUS .THIS IS OUR ASSUMPTION
Anam
analytical skills graphene is prepared to kill any type viruses .
Anam
Any one who tell me about Preparation and application of Nanomaterial for drug Delivery
Hafiz
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
Bob
The nanotechnology is as new science, to scale nanometric
brayan
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Damian
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
Renato
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
?
Kyle
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
Adin
why?
Adin
what school?
Kyle
biomolecules are e building blocks of every organics and inorganic materials.
Joe
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
research.net
kanaga
sciencedirect big data base
Ernesto
Introduction about quantum dots in nanotechnology
Praveena Reply
hi
Loga
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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