ArrayList cannot be resolved to a type : What is error in this code?

Question

I was creating an ArrayList, and i am getting following error Exception in thread "main" java.lang.Error: Unresolved compilation problem: ArrayList cannot be resolved to a type Please help.

package learnCoreJava;

import java.util.List;

public class ArrayListDemo {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        // Always initialize the concrete implementation with the interface types
                List<Integer> arrayList = new ArrayList<>(5);
                
                for(int i=0;i<=5;i++)
                    arrayList.add(i);
                
                System.out.println(arrayList);
    }

}

If you are using an IDE like eclipse or intellij, you should check your IDE's suggestions. Surely there are wiggly lines near the ArrayList. — Harald
– Harald, Commented Feb 9, 2022 at 9:11

Priyanshu · Accepted Answer · 2022-02-09 09:23:44Z

2

Add this import statement :-

import java.util.ArrayList;

answered Feb 9, 2022 at 9:23

Priyanshu

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