CSE 205 Questions And Answers With Verified
Updates
An object's operations are implemented as ANS 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. ANS True
In Java a variable must be ____ before it can be used ANS declared
In Java class members are declared with the keyword ANS static
Method overloading distinguishes between methods based on ANS 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 ANS noun/verb analysis
Immediately after the object's variables are initialized ANS a constructor is called
Every Java program consists of at least one ANS 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 ANS Answer: a, b, c, d
In Java an expression like the one below will evaluate to
, new Bunny("Flopsy", 8) ANS an object reference
Which object oriented element is used to define "has a" relationships? ANS Composition
Which object oriented element is best defined as "objects best viewed as packages of responsibility"? ANS
Encapsulation
Operations are things an object ANS does
The object oriented element that allows us to build more complex objects out of simpler objects is. ANS
Composition
The differences between value types and reference types applies to parameters ANS True
Encapsulation is about assigning responsibilities to objects ANS True
Which object oriented element is best defined as "an object should have complete authority over its
responsibilities"? ANS Data Hiding
An object is an instance of a class. ANS true
The purpose of a constructor is to ANS initialize an object to a valid state
Creating an object of a class is called ANS instantiation
In general, data hiding means that an object keeps what it knows private ANS True
Data hiding makes encapsulation work ANS True
The most widely used modeling tool for software design and construction is ANS the Unified Modeling
Language (UML)
Updates
An object's operations are implemented as ANS 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. ANS True
In Java a variable must be ____ before it can be used ANS declared
In Java class members are declared with the keyword ANS static
Method overloading distinguishes between methods based on ANS 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 ANS noun/verb analysis
Immediately after the object's variables are initialized ANS a constructor is called
Every Java program consists of at least one ANS 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 ANS Answer: a, b, c, d
In Java an expression like the one below will evaluate to
, new Bunny("Flopsy", 8) ANS an object reference
Which object oriented element is used to define "has a" relationships? ANS Composition
Which object oriented element is best defined as "objects best viewed as packages of responsibility"? ANS
Encapsulation
Operations are things an object ANS does
The object oriented element that allows us to build more complex objects out of simpler objects is. ANS
Composition
The differences between value types and reference types applies to parameters ANS True
Encapsulation is about assigning responsibilities to objects ANS True
Which object oriented element is best defined as "an object should have complete authority over its
responsibilities"? ANS Data Hiding
An object is an instance of a class. ANS true
The purpose of a constructor is to ANS initialize an object to a valid state
Creating an object of a class is called ANS instantiation
In general, data hiding means that an object keeps what it knows private ANS True
Data hiding makes encapsulation work ANS True
The most widely used modeling tool for software design and construction is ANS the Unified Modeling
Language (UML)
