Find First Element with Stream in Java 8

Create Product class

package pmk.learnjava8withrealapps.lambda;

public class Product {

	private String id;
	private String name;
	private long price;
	private int quantity;
	private String manufacturer;

	public String getManufacturer() {
		return manufacturer;
	}

	public void setManufacturer(String manufacturer) {
		this.manufacturer = manufacturer;
	}

	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 long getPrice() {
		return price;
	}

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

	public int getQuantity() {
		return quantity;
	}

	public void setQuantity(int quantity) {
		this.quantity = quantity;
	}

	public Product(String id, String name, long price, int quantity, String manufacturer) {
		this.id = id;
		this.name = name;
		this.price = price;
		this.quantity = quantity;
		this.manufacturer = manufacturer;
	}

	public Product() {
	}

	@Override
	public String toString() {
		return "Id: " + this.id + "\nName: " + this.name + "\nPrice: " + this.price + "\nQuantity: " + this.quantity + "\nManufacturer: " + this.manufacturer;
	}

}

Use findFirst() method finds the first element in a Stream

package pmk.learnjava8withrealapps.lambda;

import java.util.ArrayList;
import java.util.List;

public class Demo {

	public static void main(String[] args) {

		List products = new ArrayList();
		products.add(new Product("p1", "mobile 1", 1000, 2, "Manufacturer 1"));
		products.add(new Product("p2", "mobile 2", 700, 4, "Manufacturer 1"));
		products.add(new Product("p3", "laptop 1", 1200, 6, "Manufacturer 2"));
		products.add(new Product("p4", "laptop 2", 7000, 9, "Manufacturer 2"));
		products.add(new Product("p5", "laptop 3", 7000, 9, "Manufacturer 2"));

		System.out.println("Product info with id is p2");
		Product product = products.stream()
				.filter(p -> p.getId().equalsIgnoreCase("p2"))
				.findFirst()
				.get();
		System.out.println(product.toString());

	}
}

Output

Product info with id is p2
Id: p2
Name: mobile 2
Price: 700
Quantity: 4
Manufacturer: Manufacturer 1