Itsc 1213 exam 1 & 2 questions and complete solutions graded A+

Itsc 1213 exam 1 & 2 questions and
complete solutions graded A+

If you saw the following in a UML diagram, what does it mean? - my Counter: int - correct
answer ✔✔This is a private int field



If you saw the following in a UML diagram, what would it mean? + Student Record () - correct
answer ✔✔A public constructor



If you saw the following in a UML diagram, what would it mean? + get Record(int) : Student
Record - correct answer ✔✔A public method that takes an int parameter and returns a Student
Record object



What is printed when the following code executes and x has been set to 3 and y has been set to
6? - correct answer ✔✔first case



Given a 2d array arr[][], match items from the left to its corresponding answer on the right. -
correct answer ✔✔The index of the last row --> arr. length-1

The index of the item in the first row and first column. --> arr[0][0]

The index of the item in the first row and second column. --> arr[0][1]

The number of elements in an array. --> arr.length * arr[0].length



A student has created a Party class. The class contains variables to represent the following.

An int variable called numOfPeople to represent the number of people at the party.

A boolean variable called discoLightsOn to represent whether the disco ball is on.

A boolean variable called partyStarted to represent whether the party has started.

,The object myParty is declared as type Party. Which of the following descriptions is accurate? -
correct answer ✔✔myParty is an instance of the Party class.



Which of the following is false about import statements? - correct answer ✔✔you must specify
the class you are importing in the import statement



Which will cause the shortest execution of a binary search looking for a value in an array of
integers? - correct answer ✔✔The value is in the middle of the array



What are some of the reasons you would use an enhanced for-each loop instead of a for loop?

I: If you wish to access every element of an array.

II: If you wish to modify elements of the array.

III: If you wish to refer to elements through a variable name instead of an array index - correct
answer ✔✔I and III only.



Assume that nums in an instance field declared in a class

private ArrayList<Integer> nums;

and it has been created as an ArrayList object and it initially contains the following Integer
values [0, 0, 4, 2, 5, 0, 3, 0]. If the same class has a method called numQuest defined as follows:

// precondition: nums.size() > 0;

// nums contains Integer objects

public void numQuest() {

int k = 0;

Integer zero = new Integer(0);

while (k < nums.size()) {

if (nums.get(k).equals(zero)) nums.remove(k);

k++; }

}

, What will nums contain as a result of executing numQuest? - correct answer ✔✔[0, 4, 2, 5, 3]



What will print when the following code executes?

ArrayList<String> list1 = new ArrayList<String>();

list1.add("Anaya");

list1.add("Layla");

list1.add("Sharrie");

list1.set(1, "Destini");

list1.add(1, "Sarah");

System.out.println(list1);



You can reference this table for a description of some of the ArrayList methods. The E type
refers to the base type of the ArrayList: - correct answer ✔✔"Anaya", "Sarah", "Destini",
"Sharrie"



Given the following Date class

public class Date {

private int year;

private int month;

private int day;

public Date() {

/** Implementation not shown */ }

public Date(int year, int month, int day)

{ /** Implementation not shown */ }

public void print()

{ /** Implementation not shown */ } }