MathMachine.java 1 V/ This class will be tested 2 - public class MathMachine { 3 // One variable as operands for the math operations // values assigned in main by VPL testing system. private int cardBalance; 4. 5 6 7 // Bring in the variable values from outside MathMachine to be used // inside MathMachine. VPL's JUnit will do this. No changes here. public MathMachine (int userInputOne) { this.cardBalance = userInputOne; } 8 9 10 11 12 13 14 15 // Dear student: make changes below here. 16 17 // vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv 18 // Operation: Transaction Request // This is used to check whether the transaction can be made // Compare the charge value against the card balance and accept or decline // Modify between { and }. If valid (accepted), return true. If not valid // (declined) return false. Print information to inform the user. public boolean transactionRequest(int chargeValue) { if () // Dear student: Modify this line { 19 20 21 22 23 26 27 - System.out.println("The requested amount exceeds the amount in the account"); return false; 28 29 30 } 31 else { System.out.println("The requested amount is okay."); return true; } } 32 - 34 35 36 37 / ΛΛΛΛΛΛΛΛΛΛΛΛΛ. ΛΛΛΛΛ. ΛΛΛΛΛΛΛΛ 38 // // Dear student: make changes above here. } 39 40 41 2222 mmnmm m mmnmmm t 4
MathMachine.java 1 V/ This class will be tested 2 - public class MathMachine { 3 // One variable as operands for the math operations // values assigned in main by VPL testing system. private int cardBalance; 4. 5 6 7 // Bring in the variable values from outside MathMachine to be used // inside MathMachine. VPL's JUnit will do this. No changes here. public MathMachine (int userInputOne) { this.cardBalance = userInputOne; } 8 9 10 11 12 13 14 15 // Dear student: make changes below here. 16 17 // vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv 18 // Operation: Transaction Request // This is used to check whether the transaction can be made // Compare the charge value against the card balance and accept or decline // Modify between { and }. If valid (accepted), return true. If not valid // (declined) return false. Print information to inform the user. public boolean transactionRequest(int chargeValue) { if () // Dear student: Modify this line { 19 20 21 22 23 26 27 - System.out.println("The requested amount exceeds the amount in the account"); return false; 28 29 30 } 31 else { System.out.println("The requested amount is okay."); return true; } } 32 - 34 35 36 37 / ΛΛΛΛΛΛΛΛΛΛΛΛΛ. ΛΛΛΛΛ. ΛΛΛΛΛΛΛΛ 38 // // Dear student: make changes above here. } 39 40 41 2222 mmnmm m mmnmmm t 4
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
Related questions
Question
https://youtu.be/4hAoK54Pfdc Here is a video regarding the kit component.
Transcribed Image Text:In this activity, you will modify a method (function) to simulate a financial transaction check. Just like when you use your debit card at an ATM. The requested
transaction either gets accepted or declined by the bank. By modifying an if-else statement you will be able to perform this check. If the transaction requested
cannot be processed due to insufficient funds, tell the user. If the transaction can succeed, then tell the user that that is the case.
Your task: Add to the MathMachine.java file so that it has a complete code block called the transactionRequest() method. Fill in the Boolean logic in the if
statement so that the correct message is sent to the user. Notice the use of this.cardBalance inside the MathMachine class. See how it is private to the
MathMachine class? Consider how it might be used
your transactionRequest() method to solve the boolean logic issue. The keyword "this" means "this class".
Transcribed Image Text:MathMachine.java
1 / This class will be tested
2- public class MathMachine {
3
// One variable as operands for the math operations
// values assigned in main by VPL testing system.
private int cardBalance;
4
5
6
7
// Bring in the variable values from outside MathMachine to be used
// inside MathMachine. VPL's JUnit will do this.
public MathMachine (int userInputOne)
8
No changes here.
10
11 -
12
this.cardBalance = userInputOne;
13
}
14
15
// Dear student: make changes below here.
//
// νννννννννννν'
16
17
vvvvvvvvvvvvvvvvvvvv
18
// Operation: Transaction Request
// This is used to check whether the transaction can be made
// Compare the charge value against the card balance and accept or decline
// Modify between { and }. If valid (accepted), return true.
// (declined) return false. Print information to inform the user.
19
20
21
22
If not valid
23
24
public boolean transactionRequest (int chargeValue)
25 -
if () // Dear student: Modify this line
{
System.out.println("The requested amount exceeds the amount in the account");
return false;
}
else
26
27 -
28
29
30
31
{
System.out.println("The requested amount is okay.");
return true;
}
}
32 -
33
34
35
36
37
//
//
// Dear student: make changes above here.
}
38
39
40
41
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