what is data Abstraction? and give example

Answer Posted / santosh kumar

Abstraction is one of the most powerful and vital features provided by object-oriented programming language. Modularity is very important in any programming language, it provides flexibility to users for using the programming language. This aspect is well achieved with high performance by the concept of abstraction. In object-oriented programming language the programmer can abstract both data and code when needed.

Is This Answer Correct ?    1 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Write a short code using c++ to print out all odd number from 1 to 100 using a for loop

588


What are shallow and deep copy?

601


What do you mean by delegate? Can a user retain delegates?

528


Are php strings immutable?

562


What is the use of endl?

550






Can char be a number c++?

596


total amount of milk produced each morning and then calculates and outputs the number of cartons needed for this milk , the cost of producing the milk and the profit from producing this milk.

2081


What do you understand by zombie objects in c++?

616


Write a program which is required to process the time of a clock in hours and minutes, entered from the keyboard. With this program, there are two requirements for any data entered by a user: 1. The data must be of the correct type (in this case, two ints). 2. The data must be in the correct range: this means that, for the minutes, negative numbers and any number above 59 must be rejected; for the hours, negative numbers and any number above 23 must be rejected. Output error message for invalid data input. Output the time one and a half hour after the time input. i.e. Hour: 22 Min: 32 One and a half hour after 22:32 is 00:02

1512


write a program that reads in a file and counts the number of lines, words, and characters. Your program should ask the user to input a filename. Open the file and report an error if the file does not exist or cannot be opened for some other reason. Then read in the contents of the file and count the number of lines, words, and characters in the file. Also print additional information about the file, such as the longest and shortest words, and longest and shortest lines. For simplicity, we define a word to be one or more characters ending with white space (a space, tab, carriage return, etc.). Functions for checking the types of characters can be found in the ctype.h header file, so you want to include this header file in your program. For example, the sentence below could be all that is in a file. This sentence IT 104 is taught in C++. has 32 characters, one line, and six words. The shortest line is 32 characters. The longest line is 32 characters. The shortest word is 2 characters. The longest word is 6 characters

4853


What is a catch statement?

587


Why should we use null or zero in a program?

606


What is the copy-and-swap idiom?

608


If a base class declares a function to be virtual, and a derived class does not use the term virtual when overriding that class, is it still virtual when inherited by a third-generation class?

612


Who created c++?

583