difference between java reference and c++ reference

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what is the difference between java reference and c++ reference?
i google this but found nothing!

Posted 11-Jun-12 1:05am

Reza Oruji

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Sergey Alexandrovich Kryukov 11-Jun-12 10:47am

Do you mean C++ or C++/CLI where there are referenced, or unmanaged pointers? In native C++, the references are pretty much unrelated to pointers. Java references are more like C++ pointers, but they are "managed", pretty much like in .NET.
--SA

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Solution 2

Take Look At this example And try to understand .Hope it will solve your question.

Posted 11-Jun-12 4:13am

kushal.choudhary

Updated 11-Jun-12 6:33am

v2

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Sergey Alexandrovich Kryukov 11-Jun-12 10:53am

Come one, you link to the same page. Format the link properly, to start with.
--SA

Richard MacCutchan 11-Jun-12 12:34pm

Fixed your link. Please check what you have posted before publishing.

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Aescleal · Accepted Answer · 2012-06-11T05:05:00

In C++ references are just an alias for an object. They can only ever refer to a single object which is set when the reference is initialised.

Java references are like std::shared_ptr in C++. They can only ever refer to one object at a time but they can be rebound. They also give a lower bound for the lifetime of the object - as long as there's one reference to the object the object won't be garbage collected.

So to sum up:

- C++ references are bound to the same object for the lifetime of the reference and don't play any part in controlling the lifetime of the object.[1]

- Java references are bound to one object at a time but can be assigned other objects while the program executes. If any reference exists to an object it won't be garbage collected, unlike in C++ where having a reference to an object doesn't mean that the object's alive.

[1] with one exception - a const reference to a temporary object keeps the temporary object alive for as long as the reference is alive.

Prasad_Kulkarni · Accepted Answer · 2012-06-11T01:22:00

Solution 1

Please refer similar discussion:
What's the difference between a Java reference and C++ reference[^]

Posted 11-Jun-12 1:22am

Prasad_Kulkarni

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Sergey Alexandrovich Kryukov 11-Jun-12 10:52am

The answers address the questions asked on the referenced page formally, but do not explain essential features of Java references, which is impossible without explaining garbage collection and related topics. I voted 4.
--SA

difference between java reference and c++ reference

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