InterfaceComparableLab/src/main/java/com/zipcoder/payment/PaymentPresenter.java

package com.zipcoder.payment;

import java.util.Arrays;

public class PaymentPresenter {
    PaymentSortByPayer sortPayment = new PaymentSortByPayer();

    public PaymentPresenter() {
    }

    public String toString(Payment[] payments){
        String result = "";
        if(payments.length>0){
            payments = sortPayment.compareArray(payments);
            for(Payment p:payments){
                result+= p.getShortDescription() + "\n";
            }
        }
        return result;
    }

    public String toStringByPayerName(Payment[] payments){
        String result = "";
        if(payments.length>0){
            payments = sortPayment.compareArrayByName(payments);
            for(Payment p:payments){
                result+= p.getShortDescription() + "\n";
            }
        }
        return result;
    }

    public String toStringById(Payment[] payments) {
        String result = "";
        if (payments.length > 0) {
            payments = sortPayment.compareArrayByID(payments);
            for (Payment p : payments) {
                result += p.getShortDescription() + "\n";
            }
        }
        return result;
    }
}