Collections - Factory method for immutable Set using Bean java 9

ImmutableSet.java

package com.java9r;

import java.util.*;

public class ImmutableSet {

 public static void main(String[] args) {

   try {

   System.out.println("Products List");
   Set<Product> products = Set.of(new Product("100", "Product 1", 10), new Product("101", "Product 2", 20),
     new Product("102", "Product 3", 30), new Product("103", "Product 4", 40),
     new Product("104", "Product 5", 50));
   products.forEach(p -> {
    System.out.println("Id: " + p.getId());
    System.out.println("Name: " + p.getName());
    System.out.println("Price: " + p.getPrice());
    System.out.println("=========================");
   });

  } catch (Exception e) {
   e.printStackTrace();
  }
 }
}
 

Product.java

 package com.java9r;

public class Product {

 private String id;
 private String name;
 private double price;

 public String getId() {
  return id;
 }

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

 public String getName() {
  return name;
 }

 public void setName(String name) {
  this.name = name;
 }

 public double getPrice() {
  return price;
 }

 public void setPrice(double price) {
  this.price = price;
 }

 public Product(String id, String name, double price) {
  this.id = id;
  this.name = name;
  this.price = price;
 }

 
}
 

Output

Products List

=========================

Id: 102

Name: Product 3

Price: 30.0

=========================

Id: 103

Name: Product 4

Price: 40.0

=========================

Id: 104

Name: Product 5

Price: 50.0

=========================

Id: 101

Name: Product 2

Price: 20.0

=========================

Id: 100

Name: Product 1

Price: 10.0

=========================