In this tutorial, I am going to share with you a few different techniques you can use to iterate over a collection in Java.Iterating ArrayList with Enhanced For-LoopList<String> names = new ArrayList<>(); names.add("Sergey"); names.add("Bill"); names.add("John"); for(String name:...
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()...
1. Overview In Java, anEnumis a datatype that helps us assign a predefined set of constants to a variable. In this quick tutorial, we’ll learn different ways that we can iterate over anEnumin Java. 2. Iterating OverEnumValues Let’s first define anEnum, so we can create some simple...
} (See "The for Statement" inThe Java Tutorials, and the official specifics on these language features in theJava Language Specification, both from Sun Microsystems.) Now, the real issue: How to effectively and efficiently iterate over a collection of XML DOM Nodes? EveryNodeobject has agetCh...
Lua - String to Int Lua - Split String Lua - Check String is NULL Lua Arrays Lua - Arrays Lua - Multi-dimensional Arrays Lua - Array Length Lua - Iterating Over Arrays Lua - Slicing Arrays Lua - Sorting Arrays Lua - Merging Arrays Lua - Sparse Arrays Lua - Searching Arrays Lua - Re...
Files.newDirectoryStream opens a directory, returning a DirectoryStream to iterate over all entries in the directory. DirectoryStream listing home directoryThe first example lists the user's home directory. Main.java import java.io.IOException; import java.nio.file.Files; import java.nio.file.Paths;...
for (String name : names) { if (name.equals("john")){ names.remove(name); } } System.out.println(names); } } Output: Exception in thread “main” java.util.ConcurrentModificationException at java.base/java.util.ArrayList$Itr.checkForComodification(ArrayList.java:1043) at java.base/java...
Address of a string variable(object) in C#? AdomdConnectionException This is usually a temporary error during hostname resolution and means that the local server did not receive a response from an authoritative server Advice on Connecting to an IP Camera using C# App? AES encrypt in Javascript ...
By using the entrySet() method – which returns a list – it is possible to have an iterator over a map. See the following example to understand how this works: import java.util.*; public class AnalyzeInput { public static void main(String[] args) { Map map = new HashMap (); map...
// Generic method to remove elements from a list in Java public static <T> void filterList(List<T> list, Predicate<T> condition) { for (int i = 0; i < list.size(); i++) { if (condition.test(list.get(i))) { list.remove(i); i--; } } } public static void main(String[...