Question

which is true? a. a reference variable contains data rather than a memory address b. the new operator is used to declare a reference c. a reference declaration and object creation can be combined in a single statement d. three references can not refer to the same object

Answer 1

A reference variable stores the memory address of an object, not the data. The new operator is used for creating a new object, not declaring a reference. A reference declaration and object creation can be combined in a single statement. Multiple reference variables can refer to the same object.

Step-by-step explanation:

A reference variable is used to store the memory address of an object, rather than the actual data. So, statement a is false.

The new operator is used to allocate memory for a new object, not to declare a reference. So, statement b is false.

A reference declaration and object creation can be combined in a single statement using the new operator. So, statement c is true.

In Java, multiple reference variables can refer to the same object. So, statement d is false.