Click here to watch in Youtube :
https://www.youtube.com/watch?v=jkm-YKPxKwg&list=UUhwKlOVR041tngjerWxVccw
Product.java
https://sites.google.com/site/ramj2eev1/home/javabasics/StreamDemo_list_to_map_App.zip?attredirects=0&d=1
Github Link:
https://github.com/ramram43210/Java/tree/master/BasicJava/StreamDemo_list_to_map_App
Bitbucket Link:
https://bitbucket.org/ramram43210/java/src/0279ebcce40946c6a80779824fa3df4a8c5201d9/BasicJava/StreamDemo_list_to_map_App/?at=master
See also:
All JavaEE Viedos Playlist
All JavaEE Viedos
All JAVA EE Links
Servlets Tutorial
All Design Patterns Links
JDBC Tutorial
Java Collection Framework Tutorial
JAVA Tutorial
Kids Tutorial
https://www.youtube.com/watch?v=jkm-YKPxKwg&list=UUhwKlOVR041tngjerWxVccw
Product.java
class Product { private int id; private String name; private int price; public Product(int id, String name, int price) { super(); this.id = id; this.name = name; this.price = price; } public int getId() { return id; } public void setId(int id) { this.id = id; } public String getName() { return name; } public void setName(String name) { this.name = name; } public int getPrice() { return price; } public void setPrice(int price) { this.price = price; } @Override public String toString() { return "Product [id=" + id + ", name=" + name + ", price=" + price + "]"; } }StreamDemo.java
import java.util.ArrayList; import java.util.List; import java.util.Map; import java.util.stream.Collectors; /** * * Convert List into Map. * */ public class StreamDemo { public static void main(String[] args) { List<Product> productList = new ArrayList<Product>(); // Adding Products productList.add(new Product(1, "Sony mobile", 25000)); productList.add(new Product(2, "Lenovo mobile", 15000)); productList.add(new Product(3, "Nokia mobile", 10000)); productList.add(new Product(4, "Samsung mobile", 40000)); productList.add(new Product(5, "Micromax mobile", 10000)); // Converting Product List into a Map Map<String, Integer> productPriceMap = productList.stream() .collect(Collectors.toMap(p -> p.getName(), p -> p.getPrice())); System.out.println(productPriceMap); } }Output
{Nokia mobile=10000, Lenovo mobile=15000, Samsung mobile=40000, Micromax mobile=10000, Sony mobile=25000}Click the below link to download the code:
https://sites.google.com/site/ramj2eev1/home/javabasics/StreamDemo_list_to_map_App.zip?attredirects=0&d=1
Github Link:
https://github.com/ramram43210/Java/tree/master/BasicJava/StreamDemo_list_to_map_App
Bitbucket Link:
https://bitbucket.org/ramram43210/java/src/0279ebcce40946c6a80779824fa3df4a8c5201d9/BasicJava/StreamDemo_list_to_map_App/?at=master
See also:
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