Encapsulation.java

public class Encapsulation {
   private String productId;
   private String productName;
   private int quantity;
   private double price;

   public Encapsulation(String productId, String productName, int quantity, double price) {
       this.productId = productId;
       this.productName = productName;
       this.quantity = quantity;
       this.price = price;
   }
   public String getProductId() {
       return productId;
   }
   public void setProductId(String productId) {
       this.productId = productId;
   }
   public String getProductName() {
       return productName;
   }
   public void setProductName(String productName) {
       this.productName = productName;
   }
   public int getQuantity() {
       return quantity;
   }
   public void setQuantity(int quantity) {
       this.quantity = quantity;
   }
   public double getPrice() {
       return price;
   }
   public void setPrice(double price) {
       this.price = price;
   }
}