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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()

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.

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