Solved

difference between Java and C++

Posted on 2011-02-28
7
799 Views
Last Modified: 2012-05-11
I am currently learning Java and I already know  C++.  the book I am reading said Java  is missing some of the harder components of C++.  Does anyone know what these are?  I might not know how to use them in C++ either but I'd like to know what they are.
0
Comment
Question by:dwcronin
  • 4
  • 2
7 Comments
 
LVL 47

Accepted Solution

by:
for_yan earned 400 total points
ID: 35003476
One thing which is often mentione is that Java does not support
operator oveerloading supported by C++ - this is the feature which allows
to provide special menaing to such oprators as +, -, etc, within certain classes
These sometimes make reading C++ program difficult

The most obvious thing is that Java does not support pointers - they may also sometimes
be difficult to understand.

Also java requires all code to be within classes. In C++ you may have codes
outside any classes. In this way Java becomes
more organized.  

Therefore it is easier to understand Java code, on the other hand C++
can be more flexible.

Of course one can find some papers about the differences; these are just thisng which come
up perhaps most often.



0
 
LVL 47

Expert Comment

by:for_yan
ID: 35003481


There is below sectooion C++ concepts missing in Java;
http://www4.ncsu.edu/~kaltofen/courses/Languages/JavaExamples/cpp_vs_java/
0
 
LVL 47

Assisted Solution

by:for_yan
for_yan earned 400 total points
ID: 35003487
Yes, also important thing which makes java easier - is that it does not allow multiple inheritance -
class can  have only one superclass
0
Live: Real-Time Solutions, Start Here

Receive instant 1:1 support from technology experts, using our real-time conversation and whiteboard interface. Your first 5 minutes are always free.

 
LVL 47

Expert Comment

by:for_yan
ID: 35003493
And this page also has a few interesting points on this subject from the point of view of C++ programmers:
 
http://www.programmersheaven.com/mb/CandCPP/237865/237875/re-from-c++-to-java/?S=B20000
0
 
LVL 32

Assisted Solution

by:phoffric
phoffric earned 100 total points
ID: 35003514
Java's garbage collection removes the memory leak issue to a large degree.
Java does not support multiple inheritance which can cause problems if not careful. Instead, they emulate the C++ abstract class interface.
Java does not support pointers or pointer arithmetic, which is often tricky to use in C++ (although convenient).
Java's code is more portable than C++ code. Unfortunately, there are so many releases of Java per decade that a currently built program may not run on an older JVM.

Here is a list of differences:
   http://en.wikipedia.org/wiki/Comparison_of_Java_and_C%2B%2B

0
 
LVL 32

Expert Comment

by:phoffric
ID: 35003520
I didn't see any previous posts, so there appears to be repetition.
0
 

Author Closing Comment

by:dwcronin
ID: 35003550
thank all of you.  You guys were very fast!
0

Featured Post

Gigs: Get Your Project Delivered by an Expert

Select from freelancers specializing in everything from database administration to programming, who have proven themselves as experts in their field. Hire the best, collaborate easily, pay securely and get projects done right.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
GUI builder for Eclipse? 8 35
diffSum example 4 36
java stored proc example 9 29
hibernate example for saving data 19 37
Are you developing a Java application and want to create Excel Spreadsheets? You have come to the right place, this article will describe how you can create Excel Spreadsheets from a Java Application. For the purposes of this article, I will be u…
Introduction This article is the last of three articles that explain why and how the Experts Exchange QA Team does test automation for our web site. This article covers our test design approach and then goes through a simple test case example, how …
The viewer will learn additional member functions of the vector class. Specifically, the capacity and swap member functions will be introduced.
The viewer will learn how to clear a vector as well as how to detect empty vectors in C++.

776 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question