Authors:
Walter Savitch ,kenrick Mock
Chapter:
Getting Started
Exercise:
Programming Projects
Question:8 | ISBN:9780132830317 | Edition: 5
Question
The following program will compile and run, but it uses poor programming style. Modify the program so that it uses the spelling conventions, constant naming conventions, and formatting style recommended in this book.
public class messy {
public static void main(String[] args)
{
double TIME; double PACE;
System.out.println("This program calculates your pace given a time
and distance traveled.");
TIME = 35.5; /* 35 minutes and 30 seconds */
PACE = TIME / distance;
System.out.println("Your pace is " + PACE + " miles per hour.");
}
public static final double distance = 6.21;
}
Answer
Program:
// Messy.java
public class Messy
{
public static final double DISTANCE = 6.21;
public static void main(String[] args)
{
double time;
double pace;
System.out.println(
"This program calculates your pace
given a time and distance traveled.");
time = 35.50; /* 35 minutes and 30 seconds */
pace = time / DISTANCE;
System.out.printf("Your pace is %.1f minutes per mile.", pace);
}
}
Output:
This program calculates your pace given a time and distance traveled.
Your pace is 5.7 minutes per mile.