Define Abstract method & class with Example
Answers were Sorted based on User's Feedback
Answer / manoj kumar verma allahabad(ba
Abstract class shows kins of relationship.it is the impure
abstract.Abstract class can have method with body or
without. Abstract class can not be instantiated.e.g. Object
nahi ban sakta abstract class ka.
for example :-
abstract class Shape
{
abstract void area(); // No body compulsory to be
overriding
void show()
{
System.out.println("Shape is the show");
}
}
class circle extends Shape
{
void area()
{
}
void show()
{
System.out.println("Show the circle");
}
}
class Testabstract
{
public static void main(String ar[])
{
circle c1=new Shape(); // error object of
abstract class cannot be made
circle c2=new circle();
c2.area();
c1.show();
}
}
| Is This Answer Correct ? | 1 Yes | 0 No |
Answer / micheal b
abstract means wrapping the data in sigle unit
class is a user define data type
| Is This Answer Correct ? | 2 Yes | 2 No |
Answer / ramyathillainathan
We can indicate that a method must always be redefined in a sub class , thus making overriding compulsory. This is done using the modifier keyword abstract in the method definition.
example;
abstract class Shape
{
------------
------------
Abstract void draw();
------------
---------------
}
| Is This Answer Correct ? | 0 Yes | 0 No |
I m Abdullah Ansari compleated MCA from Jamia Hamdard,i have appeared the test of IBM on 2 august at oxford college of engineering Bangalore.waiting for hr round.. This is the first round for IBM.02/08/08 Paper consists of 4 sections 15 questions from matrices(time very less but no negative marking). 25 questions from series completion section (this section is very easy but negative marking) 15 questions from aptitude(little bit tough time limit 15 minute negative marking) 4th section is from computer science (c,c++,operating system,digital electronics ,basic question..) result came at 3 o'clock.i was selected... In interview they asked questions like 1 they asked about final yr project.. 2 what are dynamic and static memory location? 3 linked list and array difference between them. 4 what is function ? what is difference betwen function and inline function? 5 about structure 6 about binary tree, traversal, call by value. 7 storage class and many more basic questions..
write algo for cobol program whichuse three flat file to extract some specific information 8 marks mainframe
HTML is a subset of
how pseudo column works?
write the a cl program with the following specification A. Accept 2 parameters-date and date type B. if date type is J then convert date to *MDY format C. if date type is M convert date to *JUL format 4.send a program message with the value of converted date Please explain for each with coding?
what is programming language?
Why did you ever become involved in QA/testing?
what is the use of occurs 10 or (any number) in the internal table declaration with header line.
please any one pass file aid,xpeditor and endeavor tools
is possible to delete specific data in a row by using of sql query?
i want to open a helkp file that is txt file on link buttons click
Fortran cannot have value by reference True or False?