问题描述
我有这个程序:
public static void main(String[] args){
System.out.println("Enter number of nodes");
Scanner sc = new Scanner(System.in);
int n = sc.nextInt();
for(int i=0;i<=n;i++)
{
nodes.add(i);
}
System.out.println(nodes);
System.out.println("How many subnetworks you want? Enter Small(10), Med(30), Large(50)");
small = sc.nextInt();
med = sc.nextInt();
large = sc.nextInt();
System.out.println("Small = " + small + "med" + med + "large" + large);
现在取决于每一个整数的小型,中型和大型并考虑倍数值,我想ArrayList的分割成不同的ArrayList或数组。
例如,小= 100),MED(= 50,大= 10应该分头主要的ArrayList到每一个大小为10 100小的ArrayList,每个尺寸30和10大的ArrayList每个大小为50的50 MED的ArrayList。
拆分后,我想一些属性分配到sublsits元素。而且我不知道是否应该数组列表或数组或其他任何东西。
Now depending on value of small, medium and large and considering multiples of each of these integers, I want to split ArrayList into different arraylists or array.For example, small = 100, med = 50, large = 10 should split main arraylist into 100 small arraylists each of size 10, 50 med arraylists each of size 30 and 10 large arraylists each of size 50. After the split, I want to assign some properties to elements in sublsits. And I am not sure whether it should be arraylist or array or anything else.
推荐答案
您可以使用拆分列表功能。
You can use split list function.
private static List<List<Integer>> splitAndReturn(List<Integer> numbers,
int size) {
List<List<Integer>> smallList = new ArrayList<List<Integer>>();
int i = 0;
while (i + size < numbers.size()) {
smallList.add(numbers.subList(i, i + size));
i = i + size;
}
smallList.add(numbers.subList(i, numbers.size()));
return smallList;
}
该函数将返回数组的ArrayList大小为尺寸
的每个原始。
所以,如果你需要100数组大小为10,然后
The function will return an arrayList of arrays with each raw of size size
.So if you need 100 array with size 10, then
splitAndReturn(yourList, 10).subList(0, 100);
将让你的阵列的列表。
will get you the list of arrays.
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