1.

Suppose the following array and integer are declared: int[] numbers = {4, 5, 6, 7}; int index = 1 + 6 % 2 * 2; What is the value of numbers[index]? (2 points)

	An ArrayIndexOutOfBoundsException occurs.
	4
	5
	6
	7

2.

Assume that you have an array of integers named arr. Which of these code segments print the same results? (1 point)

1. int i = 0; while (i < arr.length) { System.out.println(arr[i]); i++; }
2. int i; for (i = 0; i <= arr.length; i++) { System.out.println(arr[i]); }
3. for (int i : arr) { System.out.println(i); }

	I and II only
	II and III only
	I and III only
	All three print the same results
	All three print different results

3.

Consider the following definitions: public boolean someMethod (int[] list, int value) { int counter; boolean flag = false; for (counter = 0; counter < list.length; counter++) { flag = (list[counter] != value); } return flag; } Under which of the following conditions must the method above return true? (1 point)

	Under all conditions
	Under the condition that value == list[list.length 1]
	Under the condition that value != list[list.length 1]
	Under the condition that value != list[i] for all i such that 0 <= i < list.length
	Under no conditions

4.

Consider the expression !((x <= y) || (y > 0)). It is equivalent to which of the following expressions? (2 points)

1. !(x <= y) || !(y > 0)
2. !(x <= y) && !(y > 0)
3. (x > y) && (y <= 0)

	I only
	II only
	III only
	I and III only
	II and III only

5.

What is output by the following code? (2 points) ArrayList < Integer > a = new ArrayList < Integer >(); ArrayList b = a; a.add(4); b.add(5); a.add(5); b.add(7); System.out.println(b.get(0));

	An IndexOutOfBoundsException occurs.
	4
	5
	6
	7

6.

What is output by the following code? (2 points) ArrayList < Integer > a = new ArrayList < Integer >(); ArrayList b = a; a.add(4); b.add(5); a.add(6); b.add(7); System.out.println(b.get(2));

	An IndexOutOfBoundsException occurs.
	4
	5
	6
	7

7.

What is the value of vals[2][1]? (1 point) double[][] vals = {{1.1, 1.3, 1.5}, {3.1, 3.3, 3.5}, {5.1, 5.3, 5.5}, {7.1, 7.3, 7.5}};

	1.3
	3.3
	3.5
	5.3

8.

What is the value of vals[4][1]? (1 point) double[][] vals = {{1.1, 1.3, 1.5}, {3.1, 3.3, 3.5}, {5.1, 5.3, 5.5}, {7.1, 7.3, 7.5}};

	1.1
	7.1
	7.3
	An ArrayIndexOutOfBoundsException error

9.

What is the output of the following code? (1 point) ArrayList grades = new ArrayList(); grades.add(88); grades.add(92); grades.add(95); grades.add(83); System.out.println(grades.get(grades.size()));

	An ArrayIndexOutOfBoundsException occurs
	An IndexOutOfBoundsException occurs
	92
	95
	83

10.

What is output by the following code fragment? (1 point) String[] fruits = { "apple", "banana", "peach", "strawberry" }; String str = "a"; for (String item : fruits) { str += item.substring(3, 4); } System.out.println(str);

	apnar
	aplnaacaw
	alleanchaw
	alaca
	appbaeast