Discover how to iterate over collections in Java with enhanced for-loops, forEach with lambda expressions, and other techniques.
To illustrate the various approaches to iteration in Java, I need an example of a collection and something that needs to be done with its elements. For the initial part of this article I’ll use a collection of strings representing names of things. For each name in the collection, I will...
TheforEach()method was added to theIterableinterface in Java 8. So all the java collection classes have implementations of aforEach()method. In order to use these with anEnum, we first need to convert theEnumto a suitable collection. We can useArrays.asList()to generate anArrayList,which ...
) local t = setmetatable({ length = 0 }, list) for _, v in ipairs{...} do t:push(v) end return t end }) -- push an element to the end of the list function list:push(t) -- move till last node if self.last then self.last._next = t t._prev = self.last self.last ...
In Java How to remove elements from ArrayList while iterating? The list.remove(s) will throws java.util.ConcurrentModificationException, if you remove an
// For each layer in the document for (var i = 0; i < docLayers.length; i++) { // If the current layer is a LayerSet if (docLayers.typename == "LayerSet") { // Recursive: Re-run function with the current LayerSet as target fnChangeAntiAlias(docLayers); } // Els...
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import java.text.CharacterIterator; import java.text.StringCharacterIterator; public class Main { public static void main(String[] argv) throws Exception { CharacterIterator it = new StringCharacterIterator("abcd"); // Iterate over the characters in the forward direction for (char ch = it.first()...
import java.util.Arrays; // Define a class named Exercise8. public class Exercise8 { // The main method where the program execution starts. public static void main(String[] args) { // Declare and initialize an integer array 'my_array'. int[] my_array = {25, 14, 56, 15, 36, 56...
Using the same technique that we saw in previous examples for how to iterate through a set, we will find the next node in the set and check in the list for the frequency of the string stored in the node: while (iterator.hasNext()) { //point to next element String s = (String) ...