Question

How many objects are present after the following code fragment has executed? double[] ann = new double[7]; double[] bob: bob = ann;

a.2
b.14
c.7

Answer 1

After the code executes, there is only one object, which is an array with 7 elements of type double, referenced by both ann and bob variables.

Step-by-step explanation:

The code fragment provided illustrates the initialization and referencing of arrays in Java. When the code executes, one array object is created in memory, which is pointed to by two different reference variables, ann and bob. In Java, arrays are objects which occupy a contiguous block of memory. In this case, ann is initialized with new double[7], creating an array object with 7 elements of type double. After that, bob is set to reference the same object as ann meaning no new object is created. Both variables now refer to the same array object, so there are not 7 or 14 objects but rather just one object, the array of type double with 7 elements. Therefore, the answer to the question 'How many objects are present after the following code fragment has executed?' is 1 (one).