Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Using Java to, write a program that asks the user for survey data about bus riders, and outputs a summary of that data.

Your program should first ask the user which bus line was surveyed.

Then the program asks the user how many days the survey was conducted, storing an integer answer, and then enter the number of riders that were counted (also an int). 

Take the number of riders devided by number of days.

[If that average is not a whole number, make sure you show the decimal value (such as in the examples below). You should use a type cast to make this work. Please use "printf" to display the result with 2 digits after the decimal point (rounded to the nearest hundredth) and commas separating thousands.]

```plaintext
Welcome to the Muni Ridership Calculator.
Which Muni line did you survey?  K-Ingleside
How many days did you survey ridership?  5
How many riders did you count?  123456
According to your survey, an average of 24,691.20 people
rode the K-Ingleside per day.

----- Running the program a second time ------

Welcome to the Muni Ridership Calculator.
Which Muni line did you survey?  N-Judah
How many days did you survey ridership?  30
How many riders did you count?  25000
According to your survey, an average of 833.33 people
rode the N-Judah per day.
```

### Explanation:

The Muni Ridership Calculator is used to determine the average number of people who use specific Muni lines per day, based on the survey data provided. 

1. **First Run:**
   - **Muni Line:** K-Ingleside
   - **Survey Duration:** 5 days
   - **Total Riders Counted:** 123,456
   - **Calculated Average:** 24,691.20 riders per day

2. **Second Run:**
   - **Muni Line:** N-Judah
   - **Survey Duration:** 30 days
   - **Total Riders Counted:** 25,000
   - **Calculated Average:** 833.33 riders per day

The program calculates the daily average ridership by dividing the total number of riders counted by the number of days the survey was conducted.
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Transcribed Image Text:```plaintext Welcome to the Muni Ridership Calculator. Which Muni line did you survey? K-Ingleside How many days did you survey ridership? 5 How many riders did you count? 123456 According to your survey, an average of 24,691.20 people rode the K-Ingleside per day. ----- Running the program a second time ------ Welcome to the Muni Ridership Calculator. Which Muni line did you survey? N-Judah How many days did you survey ridership? 30 How many riders did you count? 25000 According to your survey, an average of 833.33 people rode the N-Judah per day. ``` ### Explanation: The Muni Ridership Calculator is used to determine the average number of people who use specific Muni lines per day, based on the survey data provided. 1. **First Run:** - **Muni Line:** K-Ingleside - **Survey Duration:** 5 days - **Total Riders Counted:** 123,456 - **Calculated Average:** 24,691.20 riders per day 2. **Second Run:** - **Muni Line:** N-Judah - **Survey Duration:** 30 days - **Total Riders Counted:** 25,000 - **Calculated Average:** 833.33 riders per day The program calculates the daily average ridership by dividing the total number of riders counted by the number of days the survey was conducted.
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