CSCI 240 Final Exam Questions with Verified
Correct Answers
The class X contains two data members: an integer called xVal and a float called xPerc.
Which of the following is NOT a valid prototype for the class definition for X?
a. void X( int, float );
b. void setxVal( int );
c. float getxPerc();
d. X( int, float );
e. void printX();
a. void X( int, float );
An instance of a class is known as a/an __________.
a. variable
b. method
c. object
d. thing
c. object
The :: operator is used to associate a method with a specific class.
a. true
b. false
a. true
,Which of the following statements (a-d) about classes is true?
a. A class can contain both data members and methods
b. The members of a class may be private or public
c. The name of the constructor is always the same as the name of the class
d. The class definition contains prototype statements for the methods
e. All of the statements (a-d) are true.
e. All of the statements (a-d) are true.
If a string will need room for 25 characters, how should it be defined so that it will be a
valid string?
a. char str[25];
b. char str[24];
c. char str[26];
d. char str[];
c. char str[26];
Which of the following string functions will ALWAYS produce a valid string after
execution?
a. strcpy
b. strcat
c. Both of the functions (a-b) will produce a valid string
c. Both of the functions (a-b) will produce a valid string
, The null terminator is __________.
a. used to advance to a new line when executing a cout statement
b. represented as '\0'
c. used to end a valid string
d. a movie starring Arnold Schwarzenegger
e. All of the statements (a-d) are correct
f. Only statements b and c are correct
f. Only statements b and c are correct.
Which of the following is the correct definition for a variable called dblRef that can
hold a reference to the double variable dblNum?
a. double dblRef = dblNum;
b. double *dblRef = &dblNum;
c. double &dblRef = dblNum;
d. double &dblRef;
c. double &dblRef = dblNum;
Which of the following statements (a-d) are true if the following lines of code are
executed?
int G = 17;
int &H = G;
a. H is now an alternate name for G
Correct Answers
The class X contains two data members: an integer called xVal and a float called xPerc.
Which of the following is NOT a valid prototype for the class definition for X?
a. void X( int, float );
b. void setxVal( int );
c. float getxPerc();
d. X( int, float );
e. void printX();
a. void X( int, float );
An instance of a class is known as a/an __________.
a. variable
b. method
c. object
d. thing
c. object
The :: operator is used to associate a method with a specific class.
a. true
b. false
a. true
,Which of the following statements (a-d) about classes is true?
a. A class can contain both data members and methods
b. The members of a class may be private or public
c. The name of the constructor is always the same as the name of the class
d. The class definition contains prototype statements for the methods
e. All of the statements (a-d) are true.
e. All of the statements (a-d) are true.
If a string will need room for 25 characters, how should it be defined so that it will be a
valid string?
a. char str[25];
b. char str[24];
c. char str[26];
d. char str[];
c. char str[26];
Which of the following string functions will ALWAYS produce a valid string after
execution?
a. strcpy
b. strcat
c. Both of the functions (a-b) will produce a valid string
c. Both of the functions (a-b) will produce a valid string
, The null terminator is __________.
a. used to advance to a new line when executing a cout statement
b. represented as '\0'
c. used to end a valid string
d. a movie starring Arnold Schwarzenegger
e. All of the statements (a-d) are correct
f. Only statements b and c are correct
f. Only statements b and c are correct.
Which of the following is the correct definition for a variable called dblRef that can
hold a reference to the double variable dblNum?
a. double dblRef = dblNum;
b. double *dblRef = &dblNum;
c. double &dblRef = dblNum;
d. double &dblRef;
c. double &dblRef = dblNum;
Which of the following statements (a-d) are true if the following lines of code are
executed?
int G = 17;
int &H = G;
a. H is now an alternate name for G
