<< Chapter < Page Chapter >> Page >

Back to Question 24

Answer 23

The following three logical or conditional operators are supported by Java.

The logical or conditional operators Operator Typical Use Returns true if&&Left&&Right Left and Right are both true || Left || Right Either Left or Right is true! ! Right Right is false

Back to Question 23

Answer 22

This program produces the following output:

The relational 6<5 is false The relational 6>5 is true

Back to Question 22

Answer 21

Java supports the following set of relational operators:

Relational operators Operator Returns true if>Left operand is greater than right operand>= Left operand is greater than or equal to right operand<Left operand is less than right operand<= Left operand is less than or equal to right operand== Left operand is equal to right operand != Left operand is not equal to right operand

Back to Question 21

Answer 20

Relational operators return the boolean type in Java.

Back to Question 20

Answer 19

Java supports the following four unary arithmetic operators.

Unary arithmetic operators Operator Description + Indicates a positive value- Negates, or changes algebraic sign ++ Adds one to the operand,both prefix and postfix -- Subtracts one from operand,both prefix and postfix

Back to Question 19

Answer 18

The operator coerces the value of the right operand to a string representation for use in the expression only. If the right operand is avariable, the value stored in the variable is not modified in any way.

Back to Question 18

Answer 17

The plus operator (+) is also used to concatenate strings as in the following code fragment:

String concatenation "MyVariable has a value of " + MyVariable + " in this program."

Back to Question 17

Answer 16

Java support various arithmetic operators on floating point and integer numbers. The following table lists five of the binary arithmetic operators supported by Java.

Binary arithmetic operators Operator Description+ Adds its operands - Subtracts the right operand from the leftoperand * Multiplies the operands/ Divides the left operand by the right operand% Remainder of dividing the left operand by the right operand

Back to Question 16

Answer 15

As a result of performing the specified action, an operator can be said to return a value (or evaluate to a value) of a given type. The type depends on the operator and the type of the operands. To evaluate to a value means that after the action is performed, the operator and its operands areeffectively replaced in the expression by the value that is returned.

Back to Question 15

Answer 14

False: Binary operators use infix notation, which means that the operator appears between its operands.

Back to Question 14

Answer 13

The output from this Java application follows:

  • x = 5
  • X = 5
  • x + X++ = 10
  • X = 6
  • y = 5
  • Y = 5
  • y + ++Y = 11
  • Y = 6

Back to Question 13

Questions & Answers

calculate molarity of NaOH solution when 25.0ml of NaOH titrated with 27.2ml of 0.2m H2SO4
Gasin Reply
what's Thermochemistry
rhoda Reply
the study of the heat energy which is associated with chemical reactions
Kaddija
How was CH4 and o2 was able to produce (Co2)and (H2o
Edafe Reply
explain please
Victory
First twenty elements with their valences
Martine Reply
what is chemistry
asue Reply
what is atom
asue
what is the best way to define periodic table for jamb
Damilola Reply
what is the change of matter from one state to another
Elijah Reply
what is isolation of organic compounds
IKyernum Reply
what is atomic radius
ThankGod Reply
Read Chapter 6, section 5
Dr
Read Chapter 6, section 5
Kareem
Atomic radius is the radius of the atom and is also called the orbital radius
Kareem
atomic radius is the distance between the nucleus of an atom and its valence shell
Amos
Read Chapter 6, section 5
paulino
Bohr's model of the theory atom
Ayom Reply
is there a question?
Dr
when a gas is compressed why it becomes hot?
ATOMIC
It has no oxygen then
Goldyei
read the chapter on thermochemistry...the sections on "PV" work and the First Law of Thermodynamics should help..
Dr
Which element react with water
Mukthar Reply
Mgo
Ibeh
an increase in the pressure of a gas results in the decrease of its
Valentina Reply
definition of the periodic table
Cosmos Reply
What is the lkenes
Da Reply
what were atoms composed of?
Moses Reply
Got questions? Join the online conversation and get instant answers!
Jobilize.com Reply

Get Jobilize Job Search Mobile App in your pocket Now!

Get it on Google Play Download on the App Store Now




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
Google Play and the Google Play logo are trademarks of Google Inc.

Notification Switch

Would you like to follow the 'Object-oriented programming (oop) with java' conversation and receive update notifications?

Ask