java8中stream如何从集合中获取符合条件的元素呢?

Stream获取符合条件元素的实现思路

实现思路:
    使用stream流中的filter方法
	即可获取符合条件的元素

  
list<Student> students = new ArrayList<>();

students.add(new Student(1,"张三",90));
students.add(new Student(2,"李四",60));
students.add(new Student(3,"王五",30));
students.add(new Student(4,"赵六",85));


//过滤出studentId等于3的元素
int studentId = 3;
Student student = students.stream().filter(o -> o.getId() == studentId).findAny().orElse(null);

 
Student.Class

@Data
public class Student {

    private int id;
    private String name;
    private int score;
}