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CSCI 1010 Midterm Review questions with 100- correct answers.
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CSCI 1010 Midterm Review questions with 100- correct answers.
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CSCI 1010 Midterm Reviewquestions with 100% correct
answers
How are variables of a primitive type different from variables of a
class type?
The memory location of a variable of a primitive type contains a
data value itself. The memory location of a variable of a class type
contains a reference to an object.
A variable of a primitive type can be passed to a method as an
argument. A variable of a class type can not be passed to a method
as an argument.
A variable of a primitive type can be used as an instance variable in
a class. A variable of a class type can not be used as an instance
variable in a class.
A variable of a primitive type is initialized using the new keyword. A
variable of a class type is not. - answer The memory location of a
variable of a primitive type contains a data value itself. The memory
location of a variable of a class type contains a reference to an
object.
Which is the correct way to define a class called LightBulb with an
instance variable called wattage, with an accessor method and a
mutator method for that instance variable?
public class LightBulb
{
public int wattage;
public int getWattage()
{
return wattage;
,}
public void setWattage(int newWattage)
{
wattage = newWattage;
}
}
public class LightBulb
{
private int wattage;
private int getWattage()
{
return wattage;
}
private void setWattage(int newWattage)
{
wattage = newWattage;
}
}
public class LightBulb
{
public int wattage;
private int getWattage()
{
return wattage;
}
private void setWattage(int newWattage)
,{
wattage = newWattage;
}
}
public class LightBulb
{
private int wattage;
public int getWattage()
{
return wattage;
}
public void setWattage(int newWattage)
{
wattage = newWattage;
}
} - answer D. public class LightBulb
{
private int wattage;
public int getWattage()
{
return wattage;
}
public void setWattage(int newWattage)
{
wattage = newWattage;
}
}
, Which Component of a computer is used to hold a running program
and its data?
A. The Central Processing Unit
B. The Main Memory
C. Auxiliary Memory
D. Input Output Devices - answer B. The Main Memory
How many bits make up a byte? - answer 8 bits
Which of the following is a program that translates high-level
language into low level language?
A. the operating system
B. A complier
C. an interpreter
d. a virtual machine - answer B. a compiler
What is the relationship between a class and an object?
A.A class is a blueprint for ccreating objects
B.an object is a blueprint for creating classes
C.class defines a behavior for an object
D. An object defines a behavior for a class - answer A class is a
blueprint for creating objects
What is inheritance? - answer a way of organizing classes by
identifying common attributes
What is an Algorithm? - answer A set of directions for solving a
problem
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