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Programming Language - Interview Questions and Answers for 'Programming Language' - 4 question(s) found - Order By Newest

 Q1. Difference between C++ and Java ?Core Java
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Ans. Java does not support pointers.

Java does not support multiple inheritances.

Java does not support destructors but rather adds a finalize() method. Finalize methods are invoked by the garbage collector prior to reclaiming the memory occupied by the object, which has the finalize() method.

Java does not include structures or unions because the traditional data structures are implemented as an object oriented framework.

C++ compiles to machine language , when Java compiles to byte code .

In C++ the programmer needs to worry about freeing the allocated memory , where in Java the Garbage Collector takes care of the the unneeded / unused variables.

Java is platform independent language but c++ is depends upon operating system.

Java uses compiler and interpreter both and in c++ their is only compiler.

C++ supports operator overloading whereas Java doesn't.

Internet support is built-in Java but not in C++. However c++ has support for socket programming which can be used.

Java does not support header file, include library files just like C++ .Java use import to include different Classes and methods.

There is no goto statement in Java.

There is no scope resolution operator :: in Java. It has . using which we can qualify classes with the namespace they came from.

Java is pass by value whereas C++ is both pass by value and pass by reference.

Java Enums are objects instead of int values in C++

C++ programs runs as native executable machine code for the target and hence more near to hardware whereas Java program runs in a virtual machine.

C++ was designed mainly for systems programming, extending the C programming language whereas Java was created initially to support network computing.

C++ allows low-level addressing of data. You can manipulate machine addresses to look at anything you want. Java access is controlled.

C++ has several addressing operators . * & -> where Java has only one: the .

We can create our own package in Java(set of classes) but not in c and c++.

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   Like         Discuss         Correct / Improve     java   c++   difference between java and c++   programming concepts   programming languages   architecture   technical architect   technical lead     Asked in 1 Companies


 Q2. If Java will die in next few year what will you do ?Programming Language2018-10-27 07:55:42

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 Q3. What is the difference between bubble sort using Java and C++ ?Programming Language2018-10-27 08:01:39

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   Like         Discuss         Correct / Improve     C++ vs Java


 Q4. What are inline functions ?Programming Language2019-01-25 07:44:28

Ans. Inline functions , just like C++ Macros is an optimized technique used by compiler to reduce the execution time. If the function is working on pre identified values ( which aren't resolved at runtime ), the function can execute the method and evaluate the outcome at compile time only instead of making a function call at runtime.

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   Like         Discuss         Correct / Improve     inline functions  inline methods  C++     Asked in 1 Companies



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