过滤结构数组

const users = [
  { id: 1, name: 'Alice', age: 25 },
  { id: 2, name: 'Bob', age: 30 },
  { id: 3, name: 'Charlie', age: 20 }
];

const adults = users.filter(user => user.age >= 25);
console.log(adults); // [{ id: 1, name: 'Alice', age: 25 }, { id: 2, name: 'Bob', age: 30 }]

users = [
  {'id': 1, 'name': 'Alice', 'age': 25},
  {'id': 2, 'name': 'Bob', 'age': 30},
  {'id': 3, 'name': 'Charlie', 'age': 20}
]

adults = [user for user in users if user['age'] >= 25]
print(adults)  # [{'id': 1, 'name': 'Alice', 'age': 25}, {'id': 2, 'name': 'Bob', 'age': 30}]

import java.util.List;
import java.util.stream.Collectors;

class User {
    int id;
    String name;
    int age;

    User(int id, String name, int age) {
        this.id = id;
        this.name = name;
        this.age = age;
    }
}

public class Main {
    public static void main(String[] args) {
        List<User> users = List.of(
            new User(1, "Alice", 25),
            new User(2, "Bob", 30),
            new User(3, "Charlie", 20)
        );

        List<User> adults = users.stream()
                                  .filter(user -> user.age >= 25)
                                  .collect(Collectors.toList());
        adults.forEach(user -> System.out.println(user.name));  // Alice, Bob
    }
}