java

1. We would test whether a parseInt() failed due to a NumberFormatException by:

A	using an if statement block that appeared after the parseInt() statement.

B	placing the parseInt() call in the try portion of a try/catch block.

C	using a try/catch block that appeared after the parseInt() statement.

D

placing the parseInt() call in the catch portion of a try/catch block.

A constructor is used to:

a	... initialize the instance members of a class.

b	... declare the member variables of a class.

c	... initialize the static members of a class.

d

... initialize both instance and static members of a class.

3. Consider the following 2-D array allocation:

 Dog[][] lilikoi = new Dog[4][6]; 

Check the true statements.

A	The original array declaration, with no additional instantiation, will create 24 Dog objects.

B for ( row = 0; row < lilikoi.length; row++) for ( col = 0; col < lilikoi[row].length; col ++) lilikoi[row][col] = new Dog(); will instantiate 24 objects for array lilikoi[][].

C	The original array declaration, with no additional instantiation, will create 24 doubles.

D	lilikoi[][] is considered to have 4 rows and 6 columns

E We can redefine the Dog object in the bottom row and right-most column of lilikoi[][] using the notation: lilikoi[4][6] = new Dog();

F	The original array declaration, with no additional instantiation, will create 24 Dog references.