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

package com.zipcoder.payment;

import java.sql.SQLOutput;
import java.util.Arrays;

public class PaymentPresenter {


    public String toString(Payment[] payments){
        if(payments.length == 0) {

            return "";
        }
        else {


            Arrays.sort(payments, new PaymentSortByDescription());
            StringBuilder sb = new StringBuilder();
            for (Payment p : payments) {
                System.out.println(p.getShortDescription());
                sb.append(p.getShortDescription() + "\n");
            }

            return sb.toString();

        }

    }


    public String toStringByPayerName(Payment[] payments){
        if(payments.length == 0){
            return "";
        }
        else{
            Arrays.sort(payments,new PaymentSortByPayer());
            StringBuilder sb = new StringBuilder();
                for(Payment p : payments){
                System.out.println(p.getShortDescription());
                sb.append(p.getShortDescription()+ "\n");
            }
            return sb.toString();
        }

    }

    public String toStringById(Payment[] payments){
        if(payments.length == 0){
            return "";
        }
        else{
            Arrays.sort(payments,new PaymentSortById());
            StringBuilder sb = new StringBuilder();
            for(Payment p: payments){
                System.out.println(p.getShortDescription());
                sb.append(p.getShortDescription());
            }
            return sb.toString();
        }

    }

}