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- 1. Multiple Choice
What is the length of the following array: byte[] data = { 12, 34, 9, 0, -62, 88 };
1
5
6
12
- 2. Multiple Choice
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
- 3. Multiple Choice
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
- 4. Multiple Choice_________________ is a collection of elements used to store the same type of data.ArraySwitchCaseLoop
- 5. Multiple ChoiceWhat are the legal indexes for the array
ar, given the following declaration:int[] ar = {2, 4, 6, 8 }0, 1, 2, 31, 2, 3, 42, 4, 6, 80, 2, 4, 6 - 6. Multiple Choice
What is the first index of an array?
1
0
2
3
- 7. Multiple Choice
What is returned by values[5]?91268 - 8. Multiple Choice
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
- 9. Multiple Choice
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)
- 10. Multiple Choicefor(int i=0; i<10; i++)
numbers[i] = 2 * i + 1;
// Which index of the array holds the value of 5?1234 - 11. Multiple Choice
What is the error in the following code fragment?
double [] average = new double [20];
average[20] = 15.25;
A cast is required
data not initialized
A two-dimensional array is required
Array Out-of-bounds error
- 12. Multiple Choice
class Test{
public static void main (String[] args) {
int [] arr1= {1, 2, 3};
int [] arr2 = {1, 2, 3};
if(arr1[0] == arr2[0])
System.out.println("Same");
else
System.out.println("Not same");
}}
Same
Not same
Error
- 13. Multiple ChoiceAn 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, parenthesesparameter list, parenthesesinitialization list, curly bracesNone of the above
- 14. Multiple ChoiceAn array uses ____________ indexing to keep track of each memory allocation unit in the array.one-basedzero-based10-based100-based
- 15. Multiple ChoiceThe 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;
- 16. Multiple ChoiceWhich 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]);
- 17. Multiple Choice
When you declare an array name, no computer memory address is assigned to it. Instead, the array variable name has the special value ____.
Empty
Null
False
Zero
- 18. Multiple ChoiceIn Java, boolean array elements automatically are assigned the value ____.Null‘\u0000’TrueFalse
- 19. Multiple ChoiceWhen you create an array of objects, each reference is assigned the value ____.Null‘\u0000’TrueFalse
- 20. Multiple ChoiceYou use a ____ following the closing brace of an array initialization list..;:,
- 21. Multiple ChoiceIndividual array elements are ____ by value when a copy of the value is made and used within the receiving method.SortedPassedReceivedStored
- 22. Multiple ChoiceIt is a good programming practice to ensure that a subscript to an array does not fall below zero, causing a(n) ____.Array dumpRuntime errorConundrumCompiling error
- Answer choicesTagsAnswer choicesTags