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()...
private String typeOfDay; DaysOfWeekEnum(String typeOfDay) { this.typeOfDay = typeOfDay; } // standard getters and setters public static Stream<DaysOfWeekEnum> stream() { return Stream.of(DaysOfWeekEnum.values()); } } Now we’ll write an example in order to print the non-working days:...
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...
In Java How to remove elements from ArrayList while iterating? The list.remove(s) will throws java.util.ConcurrentModificationException, if you remove an
Iterate through the array as a string: importnumpyasnp arr = np.array([1,2,3]) forxinnp.nditer(arr, flags=['buffered'], op_dtypes=['S']): print(x) Try it Yourself » Iterating With Different Step Size We can use filtering and followed by iteration. ...
Lua - Functions in Table Lua - Proper Tail Calls Lua Strings Lua - Strings Lua - String Concatenation Lua - Loop Through String 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...
In order to fetch the value I'm writing a listener event during creation and updating event where the key will be converted from string to list and then iterating the list to get the summary. The summary is being iterated for the first element in the list. However, the iteration is not...
Iterators are used in Java to browse through collections. Let's look at a simple example that involves extracting the elements from a simple list one by one and printing them out. import java.util.*; public class Example16 { public static void main(String[] args) { List array = new Arr...
Create a string parser with symbols for actions Join elements of an array Multiply every array element with a constant Check if an array element is empty Different ways to display output Check if an element is present in an Array Change the font-size Reverse print an array Template literals ...