java 使用reduce和Integer.max查找最大值java 8

Posted 2021-05-08

import java.util.Arrays;
import java.util.List;
//from w w w.  j a  v a  2 s.  c o m
public class Main {
  public static void main(String...args){
    List<Integer> numbers = Arrays.asList(3,4,5,1,2);

    int max = numbers.stream().reduce(0, (a, b) -> Integer.max(a, b));
    System.out.println(max);
    
  }
}