Eclipse message saying List cannot be resolved to a type
You will have to either import the packages in which these classes are present, or write the entire path. 1. import : import java.util.ArrayList; import java.util.List; 2. Full path: public class A { …
arraylist - How to use an array list in Java? - Stack Overflow
Generic List<String> and ArrayList<String> types are used instead of raw ArrayList type. Variable names starts with lowercase list is declared as List<String> , i.e. the interface type instead of …
java - What should be imported to create a list? - Stack Overflow
Oct 5, 2015 · I attempted creating a list: List list = new ArrayList(); I compiled it and it said it needed something to import. I tried import java.util.Collection; But that doesn't do anything. I …
Get generic type of java.util.List - Stack Overflow
Dec 21, 2009 · Short answer: no. This is probably a duplicate, can't find an appropriate one right now. Java uses something called type erasure, which means at runtime both objects are …
adding into an Array list of objects from a text file in java
Nov 20, 2021 · If you want to use the new logic you have added in SortedArrayList, then instead of creating ArrayList<Events> events = new ArrayList<>();, you can create …
How to read a .csv file into an array list in java?
Feb 11, 2017 · JAVA - import CSV to ArrayList. 3. Java: Read .csv file and save into arrays. 2. Reading out a csv-File in ...
java - Scanner with ArrayList - Stack Overflow
Oct 4, 2017 · In this program I meant to write that : it should get only positive numbers from user via scanner and if they are positive - it need to add them to the 'list' Array list. For some reason …
Import arraylist to jsp, empty result - Stack Overflow
Also, add empty = ${empty registrations} or even size = <%= ((java.util.List) session.getAttribute("registration")).size() %> to your JSP to check if the list is there and non …
java - How to put a Scanner input into an array... for example a …
Jul 10, 2018 · import java.util.Scanner; import java.util.ArrayList; public class Main { public static void main (String[]args) { System.out.println("Introduce the sequence of numbers to store in …
java - how to add arraylist in Jsp - Stack Overflow
Jul 26, 2013 · You have to use JSTL <forEach> to iterate through the elements and add it to the select-option.Probably make the List a scoped attribute .