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What is the difference between C++ & Java?
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Answer / sowmya
Feature C C++ Java
Paradigms Procedural Procedural, OOP, Generic Programming OOP, Generic Programming (from Java 5)
Form of Compiled Source Code Executable Native Code Executable Native Code Java bytecode
Memory management Manual Manual Managed, using a garbage collector
Pointers Yes, very commonly used. Yes, very commonly used, but some form of references available too. No pointers; references are used instead.
Preprocessor Yes Yes No
String Type Character arrays Character arrays,
Feature C C++ Java
Paradigms Procedural Procedural, OOP, Generic Programming OOP, Generic Programming (from Java 5)
Form of Compiled Source Code Executable Native Code Executable Native Code Java bytecode
Memory management Manual Manual Managed, using a garbage collector
Pointers Yes, very commonly used. Yes, very commonly used, but some form of references available too. No pointers; references are used instead.
Preprocessor Yes Yes No
String Type Character arrays Character arrays, objects Objects
Complex Data Types Structures, unions Structures, unions, classes Classes
Inheritance N/A Multiple class inheritance Single class inheritance, multiple interface implementation
Operator Overloading N/A Yes No
Automatic coercions Yes, with warnings if loss could occur Yes, with warnings if loss could occur Not at all if loss could occur; msut cast explicitly
Variadic Parameters Yes Yes No
Goto Statement Yes Yes No
| Is This Answer Correct ? | 18 Yes | 1 No |
Answer / abdull wadood
In c++ you can use destructor but in java u can't use
destructor.
In java u can request the compiler to garbage collector.
| Is This Answer Correct ? | 20 Yes | 3 No |
Answer / salim farooqui
difference b/w java and c++
java is a true object oriented language while c++ is a
object oriented language
java does not support operator overloading.
java provides the multithreading capability.
| Is This Answer Correct ? | 20 Yes | 5 No |
Answer / prakash savaniya
Java doesnt require any header file.
it uses import statement instead of #include statement
| Is This Answer Correct ? | 21 Yes | 6 No |
Answer / swati patodkar
java is pure object oriented programing laguage.
but c++ is not pure object oriented programing laguage & we
can write a program as procedural language in ++ .
| Is This Answer Correct ? | 16 Yes | 3 No |
Answer / mahesh telor
c++ provides two types of comment where java provides 3
types of comment
* c++ comment is * java comment is
(1) single line comment (1) singleline comment
(2) multipleline comments (2) multipleline comments
(3) documentation comment
| Is This Answer Correct ? | 16 Yes | 4 No |
Answer / dilip chaudhary
The main difference between c++ and java is that java is a
platform independent i.e. write once and run any where,but
c++ doesn't.
| Is This Answer Correct ? | 9 Yes | 0 No |
Answer / priyal rathod
Java supports only LOCAL variable where as C++ supports
LOCAL & GLOBLE variable both
| Is This Answer Correct ? | 16 Yes | 8 No |
Answer / chandra sekhar
Java is a fully object oriented language where as c++ is c
with classes.
Java is used for all kinds of development i.e
console,web,windows where as c++ is only for console.
Java supports "Applets" and "Swings" concept that makes it
to be more powerful language than c++.
| Is This Answer Correct ? | 12 Yes | 4 No |
Answer / mustafa daudi
*Java Supports dynamic memory allocation due to dynamic
allocation there is no wastage of memory..
While in c++ there is wastage of memory.
*Java is exensible because new class can easily added in
libraries while in c++ it is not possible..
| Is This Answer Correct ? | 9 Yes | 1 No |
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public class Garbage { int a=0; public void add() { int c=10+20; System.out.println(c); System.out.println(a); } public static void main(String args[]) { Garbage obj=new Garbage(); System.gc(); System.out.println("Garbage Collected"); obj.add(); } } Above is a code in java used for garbage collection. object obj has been created for the class Garbage and system.gc method is called. Then using that object add method is called.System.gc method if called the obj should be garbage collected?
Core Java 
