FCPC - Array - PAct3

Which of the following is FALSE about arrays on Java

• A java array is always an object

• Arrays in Java are always allocated on heap

• Length of array can be changed after creation of array

What is the length of the following array: byte[] data = { 12, 34, 9, 0, -62, 88 };

• 1

• 6

• 5

• 12

class Demo1

{

public static void main(String args[])

{

int i[] = new int[10];

System.out.println(i[10]);

}

}

• 0

• Out-of-bounds exception

• 
  Garbage Value

• Error

_________________ is a collection of elements used to store the same type of data.

• Array

• Case

• Switch

• Loop

What is the first index of an array?

• 1

• 2

• 3

• 0

int [] nums = {2, 3, 5, 8, 9, 11};

How would you access the fourth element in nums?

• nums[4]

• 
  nums(4)

• nums[3]

• 
  nums(3)

An array declaration can optionally omit the new specifier and explicit size setting if it contains a comma-delimited _______________ inside a set of _______________ after the assignment operator, which will imply its size.

• initialization list, parentheses

• 
  initialization list, curly braces

• 
  parameter list, parentheses

• None of the above

When you declare an array name, no computer memory address is assigned to it. Instead, the array variable name has the special value ____.

• Empty

• 
  False

• 
  

  Null

• 
  

  Zero

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

• quizzes[1] = 100;

• quizzes[zero] = 100;

• 
  quizzes[0] = 100;

• 
  quizzes[one] = 100;

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

• System.out.println(quizzes[5]);

• quizzes[5];

• 
  quizzes[4];

• 
  System.out.println(quizzes[4]);