M5 pt 2

Question 1

declared either at the start or end
of a class definition. These variables identify
the data stored in the object.

Answer 1

Attributes –

Question 2

a method that is automatically
executed when an object is created. This
method is used to initialize the attributes.

Answer 2

Constructor –

Question 3

a method that is used

to change the data.

Answer 3

Mutator (Setter) –

Question 4

a method that is

used to access or retrieve data.

Answer 4

Accessor (Getter) –

Question 5

implement the business
rules for which the application is being
developed

Answer 5

Custom Methods –

Question 6

Steps in Declaring Classes

Answer 6

1. Define the class name
2. Declare the attributes
3. Create constructor
4. Create standard methods
5. Create custom methods

Question 7

class declaration syntax

Answer 7

class  {
//code 
}

Question 8

attributes declaration syntax

Answer 8

ex. private String name;

Question 9

constructor declaration syntax

Answer 9

• {
• //code here
• }

Question 10

Create standard methods (setters) syntax

Answer 10

• setXxx(args list)
• {
• //codes here
• }

Question 11

Create standard methods (getters) syntax

Answer 11

• getXxx (args list)
• {
• //codes here
• }

Question 12

Create custom methods syntax

Answer 12

• {
• //codes here
• }

Question 13

contains a reference to the current object being
constructed. It represents an instance of the class in
which it appears. It can be used to access class variables
and methods.

Answer 13

this keyword

Question 14

can be used to refer current class instance variable.

Answer 14

this()

Question 15

can be used to invoke current class 
constructor.

Answer 15

this()

Question 16

can be used to invoke current class method 
(implicitly)

Answer 16

this()

Question 17

Variable: a variable 
that is only accessible 
within a class where it 
is declared.
Method: a method that 
is only accessible 
within the class where 
it is declared.

Answer 17

private

Question 18

Variable: a variable 
that is accessible from 
all classes.
Method: a method that 
is accessible from all 
classes.

Answer 18

public

Question 19

The default modifier is 
accessible only within 
the package.
If you don't use any 
modifier, it is treated 
as default by default.

Answer 19

default (no keyword)

Question 20

The protected access 
modifier is accessible 
within and outside the 
package but through 
inheritance only.
It can be applied on 
the data member, 
method and 
constructor. It can't be 
applied on the class.

Answer 20

protected

Question 21

modifiers/qualifiers

Answer 21

final, static, abstract, interface

Question 22

variables stored in each object of a class,
usually referred to as the non-static member
fields of a class

Answer 22

Instance Variables (non-static fields) –

Question 23

variables stored in the class and are 
available to all objects of a class or objects 
of other classes if access is permitted, 
usually referred to as the static members of 
the class.

Answer 23

Class Variables (static fields) –

Question 24

data used in a method. This
data is temporary and does not exist once
the method has completed execution.

Answer 24

Local Variables (method variables or 
local data) –