CSE 205 ACTUAL Exam Questions and
CORRECT Answers
An object's operations are implemented as - CORRECT ANSWER - methods
An advantage of composition is the fact that we can sometimes reuse classes that we have
already written, instead of having to design and write new classes. - CORRECT
ANSWER - True
In Java a variable must be ____ before it can be used - CORRECT ANSWER - declared
In Java class members are declared with the keyword - CORRECT ANSWER - static
Method overloading distinguishes between methods based on - CORRECT ANSWER -
both number of arguments and data types of arguments
During what activity do we directly analyze the language of the problem to identify objects, their
attributes and their behaviors - CORRECT ANSWER - noun/verb analysis
Immediately after the object's variables are initialized - CORRECT ANSWER - a
constructor is called
Every Java program consists of at least one - CORRECT ANSWER - class definition
Which of the following is/are true about arrays? Choose all that apply.
a) the elements of an array are accessed by an integer index
b) the elements of an array all located contiguously in memory
c) the elements of an array all have the same data type
d) an array is a set of variables
, e) none of these - CORRECT ANSWER - Answer: a, b, c, d
In Java an expression like the one below will evaluate to
new Bunny("Flopsy", 8) - CORRECT ANSWER - an object reference
Which object oriented element is used to define "has a" relationships? - CORRECT
ANSWER - Composition
Which object oriented element is best defined as "objects best viewed as packages of
responsibility"? - CORRECT ANSWER - Encapsulation
Operations are things an object - CORRECT ANSWER - does
The object oriented element that allows us to build more complex objects out of simpler objects
is. - CORRECT ANSWER - Composition
The differences between value types and reference types applies to parameters - CORRECT
ANSWER - True
Encapsulation is about assigning responsibilities to objects - CORRECT ANSWER - True
Which object oriented element is best defined as "an object should have complete authority over
its responsibilities"? - CORRECT ANSWER - Data Hiding
An object is an instance of a class. - CORRECT ANSWER - true
The purpose of a constructor is to - CORRECT ANSWER - initialize an object to a valid
state
CORRECT Answers
An object's operations are implemented as - CORRECT ANSWER - methods
An advantage of composition is the fact that we can sometimes reuse classes that we have
already written, instead of having to design and write new classes. - CORRECT
ANSWER - True
In Java a variable must be ____ before it can be used - CORRECT ANSWER - declared
In Java class members are declared with the keyword - CORRECT ANSWER - static
Method overloading distinguishes between methods based on - CORRECT ANSWER -
both number of arguments and data types of arguments
During what activity do we directly analyze the language of the problem to identify objects, their
attributes and their behaviors - CORRECT ANSWER - noun/verb analysis
Immediately after the object's variables are initialized - CORRECT ANSWER - a
constructor is called
Every Java program consists of at least one - CORRECT ANSWER - class definition
Which of the following is/are true about arrays? Choose all that apply.
a) the elements of an array are accessed by an integer index
b) the elements of an array all located contiguously in memory
c) the elements of an array all have the same data type
d) an array is a set of variables
, e) none of these - CORRECT ANSWER - Answer: a, b, c, d
In Java an expression like the one below will evaluate to
new Bunny("Flopsy", 8) - CORRECT ANSWER - an object reference
Which object oriented element is used to define "has a" relationships? - CORRECT
ANSWER - Composition
Which object oriented element is best defined as "objects best viewed as packages of
responsibility"? - CORRECT ANSWER - Encapsulation
Operations are things an object - CORRECT ANSWER - does
The object oriented element that allows us to build more complex objects out of simpler objects
is. - CORRECT ANSWER - Composition
The differences between value types and reference types applies to parameters - CORRECT
ANSWER - True
Encapsulation is about assigning responsibilities to objects - CORRECT ANSWER - True
Which object oriented element is best defined as "an object should have complete authority over
its responsibilities"? - CORRECT ANSWER - Data Hiding
An object is an instance of a class. - CORRECT ANSWER - true
The purpose of a constructor is to - CORRECT ANSWER - initialize an object to a valid
state
