System.out.println(listInt.stream().reduce(Integer::max).orElse(0)); System.out.println(listInt.stream().mapToInt(Integer::valueOf).max().getAsInt()); // 取最小值 System.out.println(listInt.stream().reduce(Integer::min).orElse(0)); // 取平均值 System.out.println(listInt.stream...
下面是一个使用Java代码找到List最大值所在的索引的示例: importjava.util.ArrayList;importjava.util.List;publicclassMain{publicstaticvoidmain(String[]args){List<Integer>numbers=newArrayList<>();numbers.add(10);numbers.add(20);numbers.add(30);numbers.add(40);numbers.add(50);intmaxIndex=0;intmaxVa...
所有年龄总和为:"+sum);// 求最大年龄Integer integer=list.stream().map(Users::getAge).max(Integer::compareTo).get();System.out.println(integer);// 得到最大年龄对象Users users=list.stream().max(Comparator
从这段代码中我们可以清晰地看出LinkedList继承AbstractSequentialList,实现List、Deque、Cloneable、Serializable。其中AbstractSequentialList提供了 List 接口的骨干实现,从而最大限度地减少了实现受“连续访问”数据存储(如链接列表)支持的此接口所需的工作,从而以减少实现List接口的复杂度。Deque一个线性 collection,支持在两...
System.out.println("共计:" + list.size() + "个用户,所有年龄总和为:" +sum);//求最大年龄Integer integer =list.stream().map(Users::getAge).max(Integer::compareTo).get(); System.out.println(integer);//得到最大年龄对象Users users =list.stream().max(Comparator.comparingInt(Users::getAg...
public class ListMaxMin { public static void main(String[] args) { //构建测试数据 List<User> list = new ArrayList<User>(); list.add(new User("张丹",11,new BigDecimal(11))); list.add(new User("刘大",13,new BigDecimal(13))); list.add(new User("飒飒",16,new BigDecimal(16)));...
{// overflow-conscious codeintoldCapacity=elementData.length;intnewCapacity=oldCapacity+((capacityIncrement>0)?capacityIncrement:oldCapacity);if(newCapacity-minCapacity<0)newCapacity=minCapacity;if(newCapacity-MAX_ARRAY_SIZE>0)newCapacity=hugeCapacity(minCapacity);elementData=Arrays.copyOf(elementData,new...
(newCapacity-minCapacity<0)newCapacity=minCapacity;//当新长度大于超过int类型的最大值时,取int的最大值if(newCapacity-MAX_ARRAY_SIZE>0)newCapacity=hugeCapacity(minCapacity);//使用本地方法去扩容,就是创建一个新数组,将旧数组的元素复制过去,然后返回新数组elementData=Arrays.copyOf(elementData,newCapacity...
add(new String[]{"ee","ff"}); //使用map方法 setList.stream().map(s->Arrays.stream(s)).forEach(s-> System.out.println("map==" + s)); //使用flatMap方法 setList.stream().flatMap(s->Arrays.stream(s)).forEach(s-> System.out.println("flatMap==" + s)); 输出如下:...
.max() .orElse(0); EDIT: Ah, yes, I forgot max() returns an OptionalInt; fixed. so I need to get thehighest value from the card list in the card weight attribute, where theteam is A, andreturn the player. While looking for a player to be returned, you should not map theStream...