1. Question 1 — Correct declaration of an array of 10 objects

• ❌ Beverage[10] guestList;

• ❌ Beverage guestlist = array[10];

• ✔️ Beverage[] guestList = new Beverage[10];

• ❌ new guestlist[10];

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2. Question 2 — Why the code is incorrect

• ❌ setName(customer[3], “Spot”)

• ❌ all five names must be set

• ✔️ although the array of Pet references exists, none point to objects yet; each must be instantiated

• ❌ objects in array can’t be accessed individually

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3. Question 3 — Arrays of objects properly created & instantiated (select all)

• ✔️ Loop version

  Lesson [] week1 = new Lesson[3];
for (int i = 0; i<week1.length; i++){
week1[i] = new Lesson();
}


• ✔️ Inline initialization

  Lesson [] week1 = {new Lesson(), new Lesson(), new Lesson()};


• ❌ Lesson [] week1 = new Lesson[0], new Lesson[1], new Lesson[2];

• ❌ Lesson[3] = week1[0], week1[1], week1[2];

Correct answers: Option 1 and Option 2

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4. Question 4 — Why an object’s state changes when passed to a method

• ❌ the value of the object was passed

• ❌ updated when return executed

• ❌ a copy was passed

• ✔️ the reference to the object was passed

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5. Question 5 — Meaning of Pet fido = sparky;

• ❌ creates new object named sparky with fido data

• ✔️ sets fido to reference (“point to”) the same object as sparky

• ❌ compares objects

• ❌ creates new object named fido

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6. Question 6 — When static class constants are appropriate (select all)

• ✔️ constant used in many methods and never changes

• ✔️ constant associated with the class, accessible to clients

• ❌ variable used in different methods to avoid passing it

• ✔️ shared count across many objects (e.g. number of objects created)

Correct answers: Option 1, 2, and 4

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✅ SUMMARY TABLE

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