Java Function to rank and evaluate variables

Question

I've got 4 double's

double newmanUtil = newmanYard.oreTonnes / time();
double yandi1Util = yandiMine1.oreTonnes / time();
double yandi2Util = yandiMine2.oreTonnes / time();
double miningAreaCUtil = miningAreaC.oreTonnes / time();

and I need an operation ( and loop) to rank the resulting numbers in order from least to greatest as four integers...

int NYRank = 0;
int Y1Rank = 0;
int Y2Rank = 0;
int MACRank = 0;

I feel like this is something simple that someone knows how to do quickly...

Thanks in advance,

Try it with Bubble Sort... – Crazenezz Mar 20 '13 at 01:26 — Crazenezz, Mar 20 '13 at 01:26

score 0 · Accepted Answer · answered Mar 20 '13 at 01:26

0

This will work:

package com.sandbox;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

public class Sandbox {

    public static void main(String[] args) {
        double newmanUtil = 1;
        double yandi1Util = 3;
        double yandi2Util = 2;
        double miningAreaCUtil = 4;

        List<Double> items = new ArrayList<Double>();
        items.add(newmanUtil);
        items.add(yandi1Util);
        items.add(yandi2Util);
        items.add(miningAreaCUtil);

        Collections.sort(items);

        System.out.println(items);
    }
}

I've replaced your variables with real values just to prove that it works. Here's the output:

[1.0, 2.0, 3.0, 4.0]

What I did was take the values and put it in a list, then I sorted the list. Java knows how to sort a list of Doubles.

answered Mar 20 '13 at 01:26

Daniel Kaplan

62,768
50
234
356

Hm, now how do I associate my rank vars with the array? – David Hariri Mar 20 '13 at 01:32
I don't know. Tell me your inputs and your expected vs actual output. – Daniel Kaplan Mar 20 '13 at 01:33
just using your 1, 2, 3, 4 how do you get the array to check against the original doubles and give them a rank. In C i would use a function that would check if an object is in an array and return it's position... – David Hariri Mar 20 '13 at 01:35

Java Function to rank and evaluate variables

1 Answers1