In Java, defining an array allocates space for references or for the objects themselves?

In the following line of code, does the compiler allocate memory to store 10 objects of MyClass or 10 references?

MyClass[] arr= new MyClass[10];

In other words, do arrays store references a开发者_如何学Pythonlone or the objects themselves?

Also, is the behaviour different for primitive types?

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It allocates space for the references. In case of primitive types it allocates space = array length * primitive type byte size.

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When created like this, arrays are automatically initialized with the default value of their type, so arr gets initialized with 10 null references.