Menu
The purpose of this query is to compare one aspect of Java and C++, that has to do with the "new" operator.
Now, I know that in C++ there are two ways to create objects; with or without the "new" operator. In the absence of that operator, space is not allocated in the heap region, whereas, in its presence, space is allocated in the heap region.
What about Java? I notice that the "new" operator is used for creating every object. Even arrays are created with the "new" operator. Does it mean that in Java there is only one place for objects to exist in - that is, the heap region?
Thanks.
769
To allocate memory to an object, we must use new(). So the object is always allocated memory on the heap (See this for more details). There are two ways to create an object of string in java: By string literal.
So, only 1 object is ever created because Java is pass-by-reference.
The JVM creates a new object when the clone() method is invoked. It copies all the content of the previously created object into new one object. Note that it does not call any constructor. We must implement the Cloneable interface while using the clone() method.
Young Generation – this is where all new objects are allocated and aged. A minor Garbage collection occurs when this fills up. Old or Tenured Generation – this is where long surviving objects are stored.
Yes, the new operator always allocates memory for the object on the heap. Unlike C++, objects in Java cannot be created on the stack.
109
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
