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3 years ago

List the various cases where use of a NULL value would be appropriate.

Computers and Technology

1 answer:

melomori [17]3 years ago

4 0

Answer:

The answer is below

Explanation:

There are cases where the use of a NULL value would be appropriate in a computer programming situation. These cases can be summarily described below:

The first case is in a situation where the value of the attribute of a certain element is known to exist, but the value can not be found

The second case is in a situation where the value of the attribute of a certain element is not known whether it exists or not.

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Write a test program that prompts the user to enter three sides of the triangle (make sure they define an actual triangle), a co

Ivanshal [37]

Answer:

Scanner in = new Scanner(System.in);

System.out.print("Please enter 3 sides of a triangle, color and " +

"whether it is filled or not (true false): ");

double s1 = in.nextDouble();

double s2 = in.nextDouble();

double s3 = in.nextDouble();

String color = in.next();

boolean filled = in.nextBoolean();

Triangle t1 = null;

try {

t1 = new Triangle(s1, s2, s3, color, filled);

}

catch (IllegalTriangleException ite) {

System.out.println(ite.toString());

}

System.out.println(t1.toString());

System.out.printf("Triangle color: %s, Triangle filled: %s%n" +

"Area: %.2f%n" +

"Perimeter: %.2f%n%n",

t1.getColor(),

t1.isFilled(),

t1.getArea(),

t1.getPerimeter());

Explanation:

Scanner in = new Scanner(System.in);

System.out.print("Please enter 3 sides of a triangle, color and " +

"whether it is filled or not (true false): ");

double s1 = in.nextDouble();

double s2 = in.nextDouble();

double s3 = in.nextDouble();

String color = in.next();

boolean filled = in.nextBoolean();

Triangle t1 = null;

try {

t1 = new Triangle(s1, s2, s3, color, filled);

}

catch (IllegalTriangleException ite) {

System.out.println(ite.toString());

}

System.out.println(t1.toString());

System.out.printf("Triangle color: %s, Triangle filled: %s%n" +

"Area: %.2f%n" +

"Perimeter: %.2f%n%n",

t1.getColor(),

t1.isFilled(),

t1.getArea(),

t1.getPerimeter());

7 0

3 years ago

What is the statement describing? Agile team continuously adapt to new circumstances and enhance the methods of value delivery

Vera_Pavlovna [14]

Answer:

Continuous Integration

Explanation:

In continuous integration process, A program or piece of code is edited, tested and validated by team of software developers or contributors to complete and deploy the single project. This practice will improve the quality and reliability of the code.

Improvement, delivery and deployment are the three different phases, to complete the process of continuous integration.The individuals who contribute in a code or program in terms of improvement, delivery and deployment make a team that leads to continuous integration.

So, Agile team Continuously adapt Continuous Integration to new circumstances and enhance the methods of value delivery.

8 0

3 years ago

each term to the appropriate definition. DBMS data mining hash file index key field locking protocol relation roll back schema S

ikadub [295]

Answer:

1. DBMS

C. A storage system that provides efficient access to randomly chosen items

G. Performs database operations requested by application software

2. data mining

B. The process of extracting hidden information

3. hash file

A. A. means of locating a particular record within a file

4. index key field

F. An item used to identify records uniquely

5. locking protocol

E. A system to guard against database errors due to performing transactions concurrently

6. relation

D. A structural unit (with rows and columns) in a popular database model

7. roll back schema

I. A "road map" of a particular database's design

J. To "unwind" a transaction

8. SQL

H. A popular language that implements relational database operations.

5 0

3 years ago

This has nothing to do with anything school related, but I'm new to car audio and I was wondering, what happens or what would ha

DerKrebs [107]

It most likely can but It may damage your system. So you should seek out professional help from a car dealership and do more research.

Hope this helps.

7 0

3 years ago

PLEASE HELP ASAP!!

inn [45]

The answer is encryption

steganography would be hiding data, like in an image
digital forensics is the analysis done after an attack
and the last one is a security standard

6 0

3 years ago