Why we need new operator in java at the time of object
declaration and why not in c++?
- 1 Answers
- 6829 Views
- Zensar, I also Faced
- E-Mail Answers
Answer Posted / anuja joshi
The major difference between Java and C++ is the behavior of object variables. In C++, object variables hold values, not object references. Note that the new operator is never used when constructing objects in C++. You simply supply the construction parameters after the variable name.
Point p(1, 2); /* construct p */
If you do not supply construction parameters, then the object is constructed with the default constructor.
Time now; /* construct now with Time::Time() */
This is very different from Java. In Java, this command would merely create an uninitialized reference. In C++, it constructs an actual object.
| Is This Answer Correct ? | 3 Yes | 0 No |
Post New Answer View All Answers
Write a function which accepts a sentence as input parameter.Each word in that sentence is to be reversed. Space should be there between each words.Return the sentence with reversed words to main function and produce the required output. for eg:- i/p: jack jill jung kill o/p: kcaj llij gnuj llik
What is the difference between COM and CORBA?
As per interoperatbility programs written in one language can be used by other language. How can we restrict the features of one language (say C#) in the programmer written in another language (say VB)..for example we have some features like operator overloading which is possible C#.NET (not in VB.NET), how can we restrict that when we are using this code in VB.NET.
Do not use more than 3 nested IF. Use Evaluate statement in case of more IF required. Please give a detail explantion besides readability and clarity for Evaluate stmt.
how can we implement locks in plsql?
What is dialog programming?
HOW TO FIND NUMBER OF TWOS IN N!(N FACTORIAL)??
what is delegate and how works delegate and event.
there are N number of matchboxes numbered 1...N.each matchbox contain various number of stick.Two player can alternatevely pick some amount of stick from the higest stick containing box . The player is condidered win if there is no stick after his move.Find the final move so that the move player win. Note:In case the number of stick is equal ,pick the stick from the higest numbered box. eg: 3 box contain stick as:1,1,1. if u take 1 stick from 3rd numbred box you will any how win the match.
For a binary tree with n nodes, How many nodes are there which has got both a parent and a child?
I am looking for NIC Sample papers or any patern of questions/ syllabus plz, send me on hamid.khan135@yahoo.in Regard
the systematic access of small computers in a distributed data processing system is referred as?
how to fin top two miximum values in sql? not 2nd both max value of 1st and 2nd both have to find out
A good website has the following conditions It should be interactive. It should contain at least 20 images. Title cannot be null and should contain at least 10 letters other than spaces and hyphen (-). The keywords should contain atleast three among the following list : "design", "Graphics", "lovely", "beautiful", "amazing" and "mesmerising" Write a method: boolean isGoodWebsite(boolean isInteractive, int numOfImages, String title,String keywords[]) isInteractive whether the site is interactive or not numOfImages Number of images on the website title Title of the website keywords Array of keywords in the website.
any drawback are there in mantis?
