Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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i need help with a flow chart for this program
![## Java Program to Calculate Driving Cost
This example demonstrates a simple Java program that calculates the cost of driving based on user inputs. The provided code asks the user to input the driving distance, fuel efficiency, and the price per gallon of fuel. Then, it calculates and outputs the cost of the trip.
### Code Explanation
Here is the breakdown of the Java program:
1. **Import the Scanner Class**:
```java
import java.util.Scanner;
```
2. **Define the Class DrivingCost**:
```java
public class DrivingCost
{
```
3. **Main Method**:
```java
public static void main(String[] args)
{
```
4. **Variable Declaration and User Input**:
- **Initialize Scanner**: This object will be used to capture user inputs.
```java
Scanner scan = new Scanner(System.in);
```
- **Driving Distance**: Prompts the user to input the driving distance and stores the value.
```java
System.out.print("Enter the driving distance: ");
double drivingDistance = scan.nextDouble();
```
- **Fuel Efficiency**: Prompts the user to input the fuel efficiency in miles per gallon and stores the value.
```java
System.out.print("Enter miles per gallon: ");
double fuelEfficiency = scan.nextDouble();
```
- **Price Per Gallon**: Prompts the user to input the price per gallon of fuel and stores the value.
```java
System.out.print("Enter price per gallon: ");
double pricePerGallon = scan.nextDouble();
```
5. **Calculation**:
- Calculates the driving cost using the formula:
\[
\text{drivingcost} = \left( \frac{\text{drivingDistance}}{\text{fuelEfficiency}} \times \text{pricePerGallon} \right)
\]
```java
double drivingcost = (drivingDistance / fuelEfficiency) * pricePerGallon;
```
6. **Output the Result**:
- Outputs the calculated driving cost.
```java
System.out.printf("The cost of driving is $%.2f\n", drivingcost);
```
7. **Close the Class and Main Method**:
```java
}
}
```
### Full Program Code
```java](https://content.bartleby.com/qna-images/question/c4b4111f-0cb3-46a3-bff1-74a667fd5dd6/7ed95523-237d-43b8-9ed2-664f61316737/zwhrrbq_processed.png)
Transcribed Image Text:## Java Program to Calculate Driving Cost
This example demonstrates a simple Java program that calculates the cost of driving based on user inputs. The provided code asks the user to input the driving distance, fuel efficiency, and the price per gallon of fuel. Then, it calculates and outputs the cost of the trip.
### Code Explanation
Here is the breakdown of the Java program:
1. **Import the Scanner Class**:
```java
import java.util.Scanner;
```
2. **Define the Class DrivingCost**:
```java
public class DrivingCost
{
```
3. **Main Method**:
```java
public static void main(String[] args)
{
```
4. **Variable Declaration and User Input**:
- **Initialize Scanner**: This object will be used to capture user inputs.
```java
Scanner scan = new Scanner(System.in);
```
- **Driving Distance**: Prompts the user to input the driving distance and stores the value.
```java
System.out.print("Enter the driving distance: ");
double drivingDistance = scan.nextDouble();
```
- **Fuel Efficiency**: Prompts the user to input the fuel efficiency in miles per gallon and stores the value.
```java
System.out.print("Enter miles per gallon: ");
double fuelEfficiency = scan.nextDouble();
```
- **Price Per Gallon**: Prompts the user to input the price per gallon of fuel and stores the value.
```java
System.out.print("Enter price per gallon: ");
double pricePerGallon = scan.nextDouble();
```
5. **Calculation**:
- Calculates the driving cost using the formula:
\[
\text{drivingcost} = \left( \frac{\text{drivingDistance}}{\text{fuelEfficiency}} \times \text{pricePerGallon} \right)
\]
```java
double drivingcost = (drivingDistance / fuelEfficiency) * pricePerGallon;
```
6. **Output the Result**:
- Outputs the calculated driving cost.
```java
System.out.printf("The cost of driving is $%.2f\n", drivingcost);
```
7. **Close the Class and Main Method**:
```java
}
}
```
### Full Program Code
```java
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