1. The traversal? For, enumerator, Forin.①.for loops the same as C, the loop condition is the number of elements of the set or the number of key-value pairs, and the unordered set is first converted to an array in accordance with the subscript
methods for traversing collections
1. Iterating through a collection with a foreach Loop
foreach receives a function as a parameter. The defined function should receive an element as an input parameter, and then do not return anything. The type of
2014-12-17 16:22:15.838 Precious Metals trends [4638:150754] * * * terminating app due to uncaught exception ' nsgenericexception ', Reason: ' * * * Collection was mutated while being enumerated. 'When the program appears, it is because you walk
Format:For (data type variable name: Array or collection) {SOP (variable);} Public Static void function_1 () { //for the object array traversal, can I invoke the method of the object string[] str = {"abc", "Itcast", "CN" };
Package Day04;public class Shuzu_bianli_02 {public static void main (string[] args) {//TODO auto-generated method stub//Array Operation://Gets the element in the array int [] arr=new int[3];arr[0]=20;arr[1]=22;arr[2]=32;int
public class Xun {public static void Main (string[] args) {Int[] scores= {1,2,3,5};int len=scores.length;For loop traversalfor (int i=0;iint score=scores[i];SYSTEM.OUT.PRINTLN (score);}For each traversalSystem.out.println ("For each traversal");for (
In this "Java 8 new features tutorial" series, we'll dive into the code to show you how to iterate through a collection through a stream, how to create a stream from a collection and an array, and how to aggregate the value of a stream.In the
Here are the. Http://stackoverflow.com/questions/3010840/loop-through-array-in-javascript 1. The best answer is the for-in is used to iterate over the properties of the object, which can be used to iterate over the array of problems, so the
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.