The If ... Then ... Else statement shown in Figure 5-88 contains one or more errors. Identify the error(s) and rewrite the statements correctly. If strshippingMethod = "Overnite" Then If strDeliveryTime = "Morning" Then decDeliveryCost = 29.00D Else decDeliveryCost = 24.00D Else If strShippingMethod = " Two Days" Then decDeliveryCost = 14.00D Else decDeliveryCost = 4.00D End If
The If ... Then ... Else statement shown in Figure 5-88 contains one or more errors. Identify the error(s) and rewrite the statements correctly. If strshippingMethod = "Overnite" Then If strDeliveryTime = "Morning" Then decDeliveryCost = 29.00D Else decDeliveryCost = 24.00D Else If strShippingMethod = " Two Days" Then decDeliveryCost = 14.00D Else decDeliveryCost = 4.00D End If
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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---
### Analyzing and Correcting If...Then...Else Statements
#### Problem Statement
The If...Then...Else statement shown contains one or more errors. Your task is to identify the error(s) and rewrite the statements correctly.
#### Provided Code:
```vb
If strShippingMethod = "Overnite" Then
If strDeliveryTime = "Morning" Then
decDeliveryCost = 29.00D
Else
decDeliveryCost = 24.00D
Else
If strShippingMethod = "Two Days" Then
decDeliveryCost = 14.00D
Else
decDeliveryCost = 4.00D
End If
```
#### Observations:
1. **Structure Errors**: There is a missing `End If` for the first nested If statement that handles the "Morning" delivery time for the "Overnite" shipping method.
2. **Code Clarity**: Ensure proper indentation for readability and comprehension.
#### Correctly Rewritten Code:
```vb
If strShippingMethod = "Overnite" Then
If strDeliveryTime = "Morning" Then
decDeliveryCost = 29.00D
Else
decDeliveryCost = 24.00D
End If
Else
If strShippingMethod = "Two Days" Then
decDeliveryCost = 14.00D
Else
decDeliveryCost = 4.00D
End If
End If
```
#### Explanation:
- **Correct Nesting**: Properly nested the If statements by adding an `End If` after determining the delivery cost when the shipping method is "Overnite" and the delivery time is not "Morning."
- **Improved Readability**: Adjusted indentation and structure to make the code easier to read, which is crucial for maintaining and debugging code.
This exercise helps you understand the importance of proper control structure syntax in programming, ensuring logical flow and accurate execution.
---
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