« previous next »

Author Question: Explain the lifetime of an object. Provide an example. What will be an ideal ... (Read 60 times)

Hungry!

  • Hero Member
  • *****
  • Posts: 1,071
on: Jul 7, 2018
Explain the lifetime of an object. Provide an example.
 
  What will be an ideal response?

Question 2

Which of the following is not true about managing data in today's large organizations?
 
  A) Application software is separate from the database software.
  B) Data is captured more than once to ensure accuracy.
  C) Data exists in databases for operational and managerial purposes.
  D) The need to manage data is continuous.


frre432

  • Sr. Member
  • ****
  • Posts: 347
Reply #1 on: Jul 7, 2018
Answer to Question 1

The lifetime of an object specifies when its instantiated, how long it exists, and when it is destroyed. We specifically create an object when we need it and free it afterwards when we are done with it, and so we are in complete control of its lifetime. We can show the start and end of an object's lifeline on a sequence diagram. A message to the object's Name indicates its construction. A cross symbol marked on its timeline shows its destruction.

Answer to Question 2

B


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

Hungry!

  • Hero Member
  • *****
  • Posts: 1,071
Reply #2 on: Jul 7, 2018
TY


frre432

  • Sr. Member
  • ****
  • Posts: 347
Reply #3 on: Jul 7, 2018
Happy to Help


« previous next »
 

Did you know?

The term pharmacology is derived from the Greek words pharmakon("claim, medicine, poison, or remedy") and logos ("study").

Did you know?

A good example of polar molecules can be understood when trying to make a cake. If water and oil are required, they will not mix together. If you put them into a measuring cup, the oil will rise to the top while the water remains on the bottom.

Did you know?

Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.

Did you know?

Though newer “smart” infusion pumps are increasingly becoming more sophisticated, they cannot prevent all programming and administration errors. Health care professionals that use smart infusion pumps must still practice the rights of medication administration and have other professionals double-check all high-risk infusions.

Did you know?

For pediatric patients, intravenous fluids are the most commonly cited products involved in medication errors that are reported to the USP.

Invasive species provide an example of predator pressure. Invasive species provide an example of predator pressure.
Trees provide ecosystem services to people Trees provide ecosystem services to people
The Global Positioning System determines the location of an object from its distances to ... The Global Positioning System determines the location of an object from its distances to ...
Please fully explain the answer with steps Please fully explain the answer with steps
Explain how it can be desirable from an intertemporal perspective for a country run a current ... Explain how it can be desirable from an intertemporal perspective for a country run a current ...
A very light ideal spring stretches by when it is used to hang a 135-N object. What is the ... A very light ideal spring stretches by when it is used to hang a 135-N object. What is the ...
Video: Mechanics of Sound Animation

For a complete list of videos, visit our video library