Below is the code that I got. I want to understand the codes below, so I need
Question:
Below is the code that I got. I want to understand the codes below, so I need step by step explanation of how the codes are working.
Also, I want descriptions of the object-oriented features of this program.
import java.util.*;
//to program prompt the user to enter the brand name of the equipment, the gain, and the cost
class Equipment{
String name;
double gain;
double cost;
public Equipment(String name, double gain, double cost) {
super();
this.name = name; //to assign value to the 'name' variable
this.gain = gain;
this.cost = cost;
}
public String getName() {
return name;
}
public double getGain() {
return gain;
}
public double getCost() {
return cost;
}
}
public class Main{
//Main program to run and test the program
public static void main (String[] args) {
List
String name="default";
double gain=0,cost=0;
for(int loop=0;loop<3;loop++){
System.out.println("Item "+(loop+1)+" : ");
System.out.print("\tName of the item:");
Scanner sc=new Scanner(System.in);
name=sc.next();
System.out.print("\tGain:$");
gain=sc.nextDouble();
System.out.print("\tCost:$");
cost=sc.nextDouble();
list.add(new Equipment(name, gain, cost));
}
list.sort(Comparator.comparingDouble(p->p.getGain()/p.getCost())); //Sorting list in ascending order of ROI.
Collections.reverse(list); //Reverse the list.Now list in increasing descending order.
System.out.println("The items sorted according to ROI:");
int loop=1;
list.forEach(p->{
System.out.println("Details of item "+loop);
System.out.println("\t Name:"+p.getName());
System.out.println("\t Gain:$"+p.getGain());
System.out.println("\t Cost:$"+p.getCost());
});
}
}
Income Tax Fundamentals 2013
ISBN: 9781285586618
31st Edition
Authors: Gerald E. Whittenburg, Martha Altus Buller, Steven L Gill