Description
For the assignment, you will need to find out information about refactoring patterns, which does not appear in the lecture slides. The following location is an excellent starting point:http://www.refactoring.com/catalog/index.html.
1. Consider the following two code fragments.
Which fragment is more understandable? And why? (Hint: Think code smells)
A.
doublepotentialEnergy(double mass, double height) {
return mass * height * 9.81;
}
B.
static final double g = 9.81;
doublepotentialEnergy(double mass, double height) {
return mass * g * height;
Assignment https://eclass.srv.ualberta.ca/mod/assign/view.php?id=3237750
Assignment https://eclass.srv.ualberta.ca/mod/assign/view.php?id=3237750
public intk(long i) {
return 10;
}
public intk(int i) {
return 20;
}
}
public class B extends A {
public static voidmain(String[] args) {
System.out.println(new A().k(2));
}
}
Which refactoring pattern has been applied to the first fragment to transform it into the second code fragment? Explain the impact (upon the results from function test) of the transformation.
