Java vs Kotlin primer

/*  Java program */

public class Address {

 private String street;

 private int streetNumber;

 private String postCode;

 private String city;

 private Country country;

 public Address(String street, int streetNumber, String postCode, String city, Country country) {

  this.street = street;

  this.streetNumber = streetNumber;

  this.postCode = postCode;

  this.city = city;

  this.country = country;

 }

 @Override
 public boolean equals(Object o) {
  if (this == o) return true;

  if (o == null || getClass() != o.getClass()) return false;

  Address address = (Address) o;

  if (streetNumber != address.streetNumber) return false;

  if (!street.equals(address.street)) return false;

  if (!postCode.equals(address.postCode)) return false;

  if (!city.equals(address.city)) return false;

  return country == address.country;
 }

 @Override
 public int hashCode() {
  int result = street.hashCode();

  result = 31 * result + streetNumber;

  result = 31 * result + postCode.hashCode();

  result = 31 * result + city.hashCode();

  result = 31 * result + (country != null ? country.hashCode() : 0);

  return result;

 }

 @Override

 public String toString() {

  return "Address{" +

   "street='" + street + '\'' +

   ",     streetNumber=" + streetNumber +

   ",     postCode='" + postCode + '\'' +

   ",     city='" + city + '\'' +

   ",     country=" + country +

   '}';

 }

 public String getStreet() {

  return street;

 }

 public void setStreet(String street) {

  this.street = street;

 }

 public int getStreetNumber() {

  return streetNumber;

 }

 public void setStreetNumber(int streetNumber) {

  this.streetNumber = streetNumber;

 }

 public String getPostCode() {

  return postCode;

 }

 public void setPostCode(String postCode) {

  this.postCode = postCode;

 }

 public String getCity() {

  return city;

 }

 public void setCity(String city) {

  this.city = city;

 }

 public Country getCountry() {

  return country;

 }

 public void setCountry(Country country) {

  this.country = country;

 }

}



/*  Kotlin Program */

data class Address(var street: String,

 var streetNumber: Int,

  var postCode: String,

   var city: String,

    var country: Country)