Unit 6 Test Review - Arrays

Front

Which of the following is FALSE about arrays on Java: A java array is always an object; Arrays in Java are always initialized to have values of 0; Length of array can be changed after creation of array

Back

Length of array can be changed after creation of array

Front

Find the output
class Test {
public static void main(String args[]) {
int arr[2];
System.out.println(arr[0]);
System.out.println(arr[1]);
}
}

Back

Compile error

Front

Find the output
class Test {
public static void main(String args[]) {
int [] arr = new int[2];
System.out.println(arr[0]);
System.out.println(arr[1]);
}
}

Back

0
0

Front

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

Back

6

Front

What will happen when executing the following code?
class Demo1 { public static void main(String args[]) { int [] i = new int[10]; System.out.println(i[10]); } }

Back

Out-of-bounds exception

Front

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

Back

Array

Front

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

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

?

Back

0, 1, 2, 3

Front

What is returned by values[5]?

Back

8

Front

For the array: int stats[3]; What is the range of the index?

Back

0 to 2

Front

How would you access the fourth element in nums?

Back

nums[3]