APCSA Exam Review 2

What is the output of the following Java code? ```java int x = 5; int y = 2; System.out.println(x / y); ```

• 2.5

• 2

• 3

• 0

Which of the following is the correct way to declare an array of integers in Java?

• int arr[];

• int arr = new int[5];

• int[] arr = new int[5];

• array arr = new array(5);

• 3

• 6

• 9

• 0

Which of the following is NOT a valid Java identifier?

• _myVar

• $value

• 2ndValue

• myVar2

What is the output of the following code? ```java String s = "APCS"; System.out.println(s.length()); ```

• 3

• 4

• 5

• 0

Which of the following statements about Java methods is TRUE?

• Methods cannot return values.

• Methods must always be static.

• Methods can have parameters.

• Methods cannot be overloaded.

• 1

• 2

• 3

• 0

Which of the following is the correct way to create an object of the class Student?

• Student s = Student();

• Student s = new Student;

• Student s = new Student();

• Student s = Student.new();

What is the output of the following code? ```java int[] arr = {1, 2, 3, 4}; System.out.println(arr[2]); ```

• 1

• 2

• 3

• 4

Which of the following access modifiers allows the most restricted access?

• public

• private

• protected

• default (no modifier)