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All of the following are true about algorithms except: A set of instructions for solving a problem. Help in expressing the logic of a solution.

All of the following are true about algorithms except:

A set of instructions for solving a problem.

Help in expressing the logic of a solution.

Are seldom executed by computers.

Select all that apply to a Use Case.

A Functional requirement of a system.

A Description of the interactions between various actors and the system.

A goal an actor wants to achieve by interacting with the system.

A Sequence of actions a user will initiate.

Activity diagrams are totally different from flow charts.

True

False

An activity diagram may (select all that apply):

Describe a business process.

Identify functional requirements of a system.

Explain what happens in an individual use case.

Illustrate the logic of a software process.

A two's complement scheme only represents negative numbers.

True

False

What is the correct sequence to represent a negative number in the two's complement scheme?.

Find the positive binary representation; add one; flip the bits

Find the positive binary representation; subract one; flip the bits

Find the positive binary representation; flip the bits; add one.

Find the positive binary representation; flip the bits; subtract one.

When declaring a variable to store a positive or negative whole number, use

int

Integer

double

float

Given

int a = 3, b = 5;

which of the following printf statements displays

3 + 5 = 8

System.out.printf("%d + %d = %d", a, b, a+b)

System.out.printf("a + b = %d ", a+b)

System.out.printf("a" + "b" = "a + b")

To make a class instance variable available only to other members of the class, use the access specifier

public

private

protected

package

In the method declaration

public static int square( int x )

the keyword static means

You must declare an object of the class before calling the method.

The method will only be called from within main().

The method can be called even when no objects of the class that contains the method exist.

Has no meaning for this type of method.

For a custom class you create, the default constructor (select all that apply)

Never has any parameters specified.

If declared for a class, no other constructors can be declared.

Can never be included in a class if other constructors are defined.

Is created by the compiler if no other constructors are declared for the class.

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Question 221 pts

The purpose of a constructor method for a class is to initialize the state of the class.

True

False

In order to support multi-media, HTML 5 has new elements for (select all that apply)

Audio

Faster audio download speeds.

Video

Easier YouTube access.

This HTML code

My Personal Webpage

represents a(n)

Tag

Element

Attribute

Which of these tags are all used to create tables?

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