CSA Unit 3 Review

This is an array called values. What is returned by values[5]?

• 9
• 12
• 6
• 8

This is an array called values. What is the value of values.length?

• 0
• 5
• 6
• 7

Index values of an array range from ______________.

• 0 to length – 1
• 1 to length
• 0 to length
• 0 to length + 1

Create an array of 12 Strings called months.

• String[] months = new String[12];
• String months = new String[12];
• String[] months = new String[];
• String[12] months = new String[];

Based on the statement below, which of the following statements gives the length of the data array?
double[ ] data = new double[10];

• data.size()
• data.length
• data.size
• data.length()

What is the error in the following code fragment?
double[ ] data = new double[20];
data[20] = 15.25;

• A cast is required
• data not initialized
• A two-dimensional array is required
• Out-of-bounds error

The first value of an array called quizzes can be accessed with which of the following statements?

• quizzes[1] = 100;
• quizzes[0] = 100;
• quizzes[zero] = 100;
• quizzes[one] = 100;

Which of the following statements outputs the fifth value in the quizzes array?

• System.out.println(quizzes[5]);
• quizzes[4];
• quizzes[5];
• System.out.println(quizzes[4]);

String word = "A few good men";
What is word.length()?

• 14
• 15
• 13
• 12

String word = "A few good men";
What is word.charAt(7) ?

• o
• g
• 7
• good men