MidTerm 2

Question 1

A sequence of instructions with a name____

Answer 1

Method

Question 2

____are supplied when a method is called

Answer 2

Parameters

Question 3

the method ___ is the result that the method computes

Answer 3

Return

Question 4

when writing a method, we only present the___of the method to the user of the method.

Answer 4

Abstraction

Question 5

the action of hiding the implementation is known as___

Answer 5

Encapsulation

Question 6

The engineering term for encapsulation is ___

Answer 6

black box

Question 7

In Java, a method can never change the contents of a____ that is passed to that method.

Answer 7

Variable

Question 8

A java program contains ___classes

Answer 8

1 or more

Question 9

The____is a special static method that Java recognizes as an entry point into a program.

Answer 9

main method

Question 10

The ___acts as a table of contents or set of directions to control the flow of the program

Answer 10

main method

Question 11

Every class must have these 3 basic functions of every computation.

Answer 11

input, process, output

Question 12

A ___ is a special method that is called when an object is instantiated to initialize the instance variables

Answer 12

constructor

Question 13

The purpose of a constructor is to _____

Answer 13

initialize a newly created object

Question 14

The name of the constructor must match the ___name

Answer 14

class

Question 15

A class can have how many constructors?

Answer 15

1 or more

Question 16

object oriented programming

Answer 16

solve tasks using collaborative objects

Question 17

class describes a set

Answer 17

objects with the same behavior

Question 18

to construct a new object of a class we ____it by using the ___ operator.

Answer 18

instantiate

new

Question 19

Once you have instantiated an object, you can utilize its

Answer 19

methods

Question 20

These methods are called ___ because they are invoked on an object

Answer 20

instance methods

Question 21

When we use methods of different classes we must specify the

Answer 21

class name 
and instance method name

Question 22

When you create a class you will encapsulate it, this involves

Answer 22

hiding the implementation and creating / providing public interface

Question 23

The public interface of a class consists of..

Answer 23

all the instance methods that a user of your class might want to apply to it objects

Question 24

The___make up the public interface of the class.

Answer 24

method declaration

Question 25

The private implementation consists of:

Answer 25

the data and method bodies

Question 26

once you have ____your class by creating an object of that class, you can invoke one or all of its methods.

Answer 26

instantiated

Question 27

a mutator method/set method

Answer 27

will modify the object on which it operates

Question 28

Accessor methods/get methods

Answer 28

do not modify, only queries the object for some information