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Section 4.7 Assessment: Construct A Scanner
Subgoals for using objects (creating instances).
Declare variable of appropriate class datatype.
Assign to variable: keyword new, followed by class name, followed by ().
-
Determine whether parameter(s) are appropriate (API)
Number of parameters
Data types of the parameters
Exercises Exercises
1.
Q1: Fill in the blanks for the following code, if the purpose of the code is to create a new Scanner instance called input.
________ ________ = ________ ________ (________)
A B C D E
Fill in blank A.
Scanner
input
new
System.in
2.
Q2: Fill in the blanks for the following code, if the purpose of the code is to create a new Scanner instance called input.
________ ________ = ________ ________ (________)
A B C D E
Fill in blank B.
Scanner
input
new
System.in
3.
Q3: Fill in the blanks for the following code, if the purpose of the code is to create a new Scanner instance called input.
________ ________ = ________ ________ (________)
A B C D E
Fill in blank C.
Scanner
input
new
System.in
4.
Q4: Fill in the blanks for the following code, if the purpose of the code is to create a new Scanner instance called input.
________ ________ = ________ ________ (________)
A B C D E
Fill in blank D.
Scanner
input
new
System.in
5.
Q5: Fill in the blanks for the following code, if the purpose of the code is to create a new Scanner instance called input.
________ ________ = ________ ________ (________)
A B C D E
Fill in blank E.
Scanner
input
new
System.in
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