InterfaceComparableLab/src/main/java/Paypal.java

public class Paypal implements Payment {
    private long id;
    private String payerName;
    private String email;

    public Paypal(){

    }

    public Paypal(long id, String payerName,  String email){
this.id = id;
this.payerName = payerName;
this.email= email;
    }

    public long getId() {
        return id;
    }

    public String getPayerName() {
        return payerName;
    }

    public String getShortDescription() {
        return "Paypal " + getPayerName() + " " + getEmail();
    }

    public void setId(long id) {
        this.id = id;
    }

    public void setPayerName(String payerName) {
        this.payerName = payerName;
    }

    public String getEmail() {
        return email;
    }

    public void setEmail(String email) {
        this.email = email;
    }


    public int compareTo(Payment o) {

        if (this.getShortDescription().compareTo(o.getShortDescription()) > 0) return 1;

        else  if (this.getShortDescription().compareTo(o.getShortDescription()) < 0)return -1;

        else return 0;


    }
}