QUESTION 15

In a Java class, the name of a constructor can be anything but the same as the name of the class.

True

False

2 points

QUESTION 16

A local variable is an variable that is declared within a method and that is visible only within that method.

True

False

2 points

QUESTION 17

Arrays can be initialized when they are created.

True

False

2 points

QUESTION 18

Arrays cannot be passed as parameters into methods, but their elements can be passed individually.

True

False

2 points

QUESTION 19

The Java operator new is needed to instantiate an object (i.e. create an instance of a Java class).

True

False

2 points

QUESTION 20

An exception is thrown when an array index goes out of bounds.

True

False

2 points

QUESTION 21

The class ArrayList is contained in the package java.util.

True

False

2 points

QUESTION 22

An array index can be any expression that evaluates to a non-negative integer. The value of the index must always be less than the size of the array.

True

False

2 points

QUESTION 23

In Java, [ ] is an operator, called the array subscripting operator.

True

False

2 points

QUESTION 24

To access an element of a two-dimensional array, you need a pair of indices: one for the row position, and one for the column position.

True

False

2 points

QUESTION 25

If an array index is less than zero, an InvalidIndexException exception is thrown.

True

False

2 points

QUESTION 26

You cannot override the default definition of the method toString because it is provided by Java Object class.

True

False

2 points

QUESTION 27

In a method call statement, when passing an array as an actual parameter, you use only its name.

True

False

2 points

QUESTION 28

To determine whether two reference variables of the Integer type point to the same Integer object, we can use either the method equals of the class Integer or the operator ==.

True

False

2 points

QUESTION 29

This is automatically provided for a java class if you do not write one yourself.

		accessor method
		default instance
		default constructor
		variable declaration