java arrays

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

• 1

• 5

• 6

• 12

Which of the following is FALSE about arrays on Java

• A java array is always an object

• Length of array can be changed after creation of array

• Arrays in Java are always allocated on heap

class Demo1

{

public static void main(String args[])

{

int i[] = new int[10];

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

}

}

• 0

• Garbage Value

• Out-of-bounds exception

• Error

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

• Array
• Switch
• Case
• Loop

What are the legal indexes for the array ar, given the following declaration:

int[] ar = {2, 4, 6, 8 }

•  0, 1, 2, 3
•  1, 2, 3, 4
• 2, 4, 6, 8
•  0, 2, 4, 6

What is the first index of an array?

• 1

• 0

• 2

• 3

What is returned by values[5]?

• 9
• 12
• 6
• 8

For the array:

int stats[3];

What is the range of the index?

• 0 to 3

• 0 to 2

• 1 to 3

• 0 to 4

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

How would you access the fourth element in nums?

• nums[4]

• nums[3]

• nums(4)

• nums(3)

for(int i=0; i<10; i++)
           numbers[i] = 2 * i + 1;
// Which index of the array holds the value of 5?

• 1
• 2
• 3
• 4