Arrays and Algorithms

What does the following segment of code print out? int[] numArray = { 2, 7, 4, 12, 0, 2 };
System.out.println(numArray[2]);

• 2
• 7
• 4
• 12

What does the following segment of code print out? int[] numArray = { 2, 7, 4, 12, 0, 2 };
System.out.println(numArray[0]);

• 2
• 7
• 4
• 12

What does the following segment of code print out? int[] numArray = { 2, 7, 4, 12, 0, 2 };
System.out.println(numArray[numArray.length - 1]);

• 2
• 0
• 12
• 6

What does the following segment of code print out? int[] numArray = { 2, 7, 4, 12, 0, 2 };
System.out.println(numArray.length);

• 4
• 5
• 6
• 7

What is the correct way to initialize an integer array with 10 positions?

• int numbers = new int[10];
• int[] numbers = new int[];
• int[10] numbers = new int[10];
• int[] numbers = new int[10];

What value is stored in each of the 5 positions in this array? (What is the default value provided by Java?).
int[] numbers = new int[10];

• null
• 1
• 0
• nothing

What value is at index 1 in this array?  String[] names = {"Mack", "Dennis", "Dee", "Charlie"};

• Mack
• Dennis
• Dee
• Charlie

What value is at index 3 in this array?  String[] names = {"Mack", "Dennis", "Dee", "Charlie"};

• Mack
• Dennis
• Dee
• Charlie

What is the correct way to create an array with these three numbers: 12  8  15

• int[] = {12, 8, 15};
• int[] nums = {12  8  15};
• int[] nums = {12, 8, 15}
• int[] nums = {12, 8, 15};

True or False:  An array can store different types of data (i.e. Can it store both Strings and ints?).

• True
• False