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  1. import java.util.Arrays;
  2. import java.util.List;
  3. import java.util.Objects;
  4.  
  5. class Item {
  6.     private String id;
  7.  
  8.     public Item(String id) {
  9.         this.id = id;
  10.     }
  11.  
  12.     public String getId() {
  13.         return id;
  14.     }
  15. }
  16.  
  17. public class Main {
  18.     public static void main(String[] args) {
  19.         List<Item> items = Arrays.asList(
  20.                 new Item("7"),
  21.                 new Item("123123123"),
  22.                 new Item("8"),
  23.                 new Item("123123123"),
  24.                 new Item("9")
  25.         );
  26.  
  27.         boolean contains = items
  28.                 .stream()
  29.                 .anyMatch(item -> Objects.equals(item.getId(), "123123123"));
  30.         String customer = contains ? "admin" : null;
  31.         System.out.println(customer);
  32.     }
  33. }
Success #stdin #stdout 0.14s 4386816KB
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admin
https://ideone.com/TVEK9q
language:
Java (HotSpot 12)
created:
6 years ago
visibility:
public

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