In Java How to remove elements from ArrayList while iterating? The list.remove(s) will throws java.util.ConcurrentModificationException, if you remove an
util.List; /* * Java Program to remove an element while iterating over ArrayList */ public class Main { public static void main(String[] args) throws Exception { List<String> loans = new ArrayList<>(); loans.add("personal loan"); loans.add("home loan"); loans.add("auto loan");...
Write a Java program to remove duplicates from a given stack.Sample Solution:Java Code:import java.util.Scanner; import java.util.HashSet; public class Stack { private int[] arr; private int top; // Constructor to initialize the stack public Stack(int size) { arr = new int[size]; top...
channel.register(selector, SelectionKey.OP_ACCEPT);// 把channel注册到复用器intret=selector.select();// 阻塞调用Set<SelectionKey> selectionKeys = selector.selectedKeys();// 拿到事件就绪的channel// 以下就是根据业务展开了Iterator<SelectionKey> it = selectionKeys.iterator();while(it.hasNext()){Selec...
2. Remove Duplicates From a List Using Plain Java We can easily remove the duplicate elements from a List with the standard Java Collections Frameworkthrough a Set: public void givenListContainsDuplicates_whenRemovingDuplicatesWithPlainJava_thenCorrect() { ...
In Java How to remove Elements while Iterating a List, ArrayList? (5 different ways) In Java How to Find Duplicate Elements from List? (Brute Force, HashSet and Stream API) How to Iterate Through Map and List in Java? Example attached (Total 5 Different Ways) ...
Write a Java program to remove a specific element from an array. Pictorial Presentation: Sample Solution: Java Code: // Import the Arrays class from the java.util package.importjava.util.Arrays;// Define a class named Exercise7.publicclassExercise7{// The main method where the program executi...
This exception occurs when a collection is modified while iterating over it using methods other than those provided by the iterator object. For example, we have a list of hats and we want to remove all those that have ear flaps: List<IHat> hats =newArrayList<>(); hats.add(newUshanka()...
h.remove("Australia"); System.out.println("List after removing Australia:"+h); // Iterating over hash set items System.out.println("Iterating over list:"); Iterator i = h.iterator(); while (i.hasNext()) System.out.println(i.next()); ...
ArrayList<Double>data;Iterator<Double>walk=data.iterator();while(walk.hasNext()){if(walk.next()<0.0)walk.remove();} 动手实现一个Iterator 一般来说我们有两种实现迭代器的方式(区别在于实例化一个迭代器对象时的逻辑,以及每次向前迭代next的时候的运作逻辑 ...