Question 15

What determines which version of an overridden method is executed?

the static type of the variable that acts as the 'qualifier' in the method call

the dynamic type of the variable that acts as the 'qualifier' in the method call

the data types of the arguments of the method call

the name of the class where the method call is located

the name of the method

Question 16

What determines which version of an overloaded method is executed?

the static type of the variable that acts as the 'qualifier' in the method call

the dynamic type of the variable that acts as the 'qualifier' in the method call

the data types of the arguments of the method call

the name of the class where the method call is located

the name of the method

Question 17

A programmer writing code in class Point attempts to override the following inherited method: public boolean equals( Object o ) { ... } but does not match the method signature exactly. Instead, the programmer uses the following method signature: public boolean equals( Point p ) { ... } What is the result?

A syntax error occurs because the method signatures do not match.

The code compiles and works fine -- the method has been successfully overridden.

The code compiles, but the inherited method has not been overridden -- it has been overloaded instead.

The compiler automatically changes the method signature to match the inherited method.

The compiler issues a warning, but the method is successfully overridden.

Question 18

Given the following class hierarchy: Siamese "Is-A" Feline "Is-A" Mammal "Is-A" LivingThing Which of the following is true?

( new Mammal() ) instanceof LivingThing

( new Feline() ) instanceof LivingThing

( new Siamese() ) instanceof LivingThing

All of the above

None of the above