What is the name for the circled items in the following


Question 1. What two categories of variables can classes define?

Instance and core variables

Volatile and non-volatile variables

Instance and class variables

Inheritance and class variables

Question 3. Which statement shows the correct way to declare and initialize a named constant that represents absolute zero?

final int absoluteZero = -273.15;

final double absoluteZero = -273.15;

final int ABSOLUTE_ZERO = -273.15;

final double ABSOLUTE_ZERO = -273.15;

Question 4.4. In the following class:

public class Height

{

private double height;

private String unitsOfMeasurement;

//************************

public Height()

{

this.unitsOfMeasurement = "in";

}

public void setHeight(double height)

{

this.height = height;

this.unitsOfMeasurement = "cm";

}

public void setHeight(double height, String unitsOfMeasurement)

{

this.height = height;

this.unitsOfMeasurement = unitsOfMeasurement;

}

public void print()

{

System.out.println(this.height + " " + this.unitsOfMeasurement);

}

} // end class Height

Which method is the constructor? (Points : 1)

The print method

The Height method

The setHeight method

This class does not implement a constructor.

Question 5. Java primitive types include _________.

integer, double, string, boolean, long and float

integer, double, float, array, boolean and long

long, integer, string, array, float, double and character

long, double, character, float, integer and boolean

Question 6. What is the name for the circled items in the following statement? What is the name for the circled items in the following statement?

modulus specifier

format specifier

flags specifier

precision specifier

Question 7. Which Java operator is used for concatenation?

&&

+

.

||

What will display on the screen for mazdaCar's year when mazdaCar executes printYear()?

2008

2010

2011

Black

Question 9. Given the following method from a class:

...

public double calculateArea(double length, double width)

{ double area; area = length * width; return area; return area;

}

...

What is the scope of the variables length and width?

Global to the class.

Local to the method.

Global to all objects created from the class.

None of the above.

Question 10. In the following code fragment:

...

5 Person person1 = new Person();

6 Person person2 = new Person();

8 person1.setName("Bugs Bunny");

9 person2.setName("Daffy Duck");

10 System.out.println(person1.getName() + ", " + person2.getName());

12 person1.swapPerson(person2);

13 System.out.println(person1.getName() + ", " + person2.getName());

...

What is being passed to the swapPerson method in line 12:

an object

an object reference

a class

a class reference

Question 11. In the following Java code fragment:

...

int postion1 = 15;

int postion2 = 18;

int distanceApart =

Math.abs(position1 - position2);

...

What type of method is the Math.abs() method?

Instance method

Class method

Final method

Inherited method

Question 12. When a public method needs to access both class members (variables and methods) and instance members (variables and methods), the method must be a / an _________ method.

instance

helper

class

None of the above.

Question 13. In the following class:

public class Height

{

private double height;

private String unitsOfMeasurement;

public Height()

{

this.unitsOfMeasurement = "in";

}

public void setHeight(double height)

{

this.height = height;

this.unitsOfMeasurement = "cm";

}

public void setHeight(double height, String unitsOfMeasurement)

{

this.height = height;

this.unitsOfMeasurement = unitsOfMeasurement;

}

public void print()

{

System.out.println(this.height + " " + this.unitsOfMeasurement);

}

} // end class Height

Which method is overloaded? (Points : 1)

The print method

The Height method

The setHeight method

None of the methods are overloaded.

Question 14. What must a method return if the method implements method call chaining?

The calling object

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