5e encounter budget

import java.util.Scanner;


public class EncPlan {
    int partycount;
    int[] levels;
    int enemycount;
    int[] CRs;

    int[] medExpTarget = {50,100,150,250,500,
            600,750,900,1100,1200,1600,2000,
            2200,2500,2800,3200,3900,4200,4900,5700};
    int[] hardExpTarget = {75,150,225,375,750,900,
            1100,1400,1600,1900,2400,3000,3400,3800,4300,
            4800,5900,6300,7300,8500};
    double[] multipliers = {.5, 1, 1.5, 2, 2.5, 3, 4};
    String[] monstCountDesc = {"1 monster", "2 monsters", "3-6 monsters", "7-10 monsters", "11-14 monsters"};

    public static void main(String[] args){

        EncPlan e = new EncPlan();
        try(Scanner s = new Scanner(System.in)){
            System.out.println("Enter party count");
            e.partycount = s.nextInt();
            System.out.println("Enter level of each party member.");
            e.levels = new int[e.partycount];
            for (int i = 0; i < e.levels.length; ++i){
                e.levels[i] = s.nextInt();
            }

            int medExpBudget = 0;
            for (int i = 0; i < e.levels.length; ++i){
                medExpBudget += e.medExpTarget[e.levels[i] - 1];
            }

            int hardExpBudget = 0;
            for (int i = 0; i < e.levels.length; ++i){
                hardExpBudget += e.hardExpTarget[e.levels[i] - 1];
            }

            System.out.println("For medium encounters, shoot for one of the following:");
            for (int i = 0; i < e.monstCountDesc.length; ++i){
                int multiplierIndex = i+1;
                if (e.partycount < 3) ++multiplierIndex;
                if (e.partycount > 5) --multiplierIndex;
                double currMult = e.multipliers[multiplierIndex];
                double budget = medExpBudget/currMult;
                System.out.println(e.monstCountDesc[i] + " worth a total of " + (int)budget + " exp.");

            }

            System.out.println("\n\nFor hard encounters, shoot for one of the following:");
            for (int i = 0; i < e.monstCountDesc.length; ++i){
                int multiplierIndex = i+1;
                if (e.partycount < 3) ++multiplierIndex;
                if (e.partycount > 5) --multiplierIndex;
                double currMult = e.multipliers[multiplierIndex];
                double budget = hardExpBudget/currMult;
                System.out.println(e.monstCountDesc[i] + " worth a total of " + (int)budget + " exp.");

            }


        }

    }
}