1.
What are the advantages of arrays?
Answer: Option 'D'
Arrays are simple to implement when it comes to matrices of fixed size and type, or to implement other data structures.
2.
Which of these best describes an array?
Answer: Option 'B'
Container of objects of similar types
Array contains elements only of the same type.
3.
Which of the following is a correct way to declare a multidimensional array in Java?
Answer: Option 'D'
All the options are syntactically correct.
4.
What is the output of the following piece of code?
public class array
{
public static void main(String args[])
{
int []arr = {1,2,3,4,5};
System.out.println(arr[5]);
}
}
Answer: Option 'C'
Trying to access an element beyond the limits of an array gives ArrayIndexOutOfBoundsException.
5.
When does the ArrayIndexOutOfBoundsException occur?
Answer: Option 'B'
ArrayIndexOutOfBoundsException is a run-time exception and the compilation is error-free.